Turn a tree into a binary tree with no left subtree at the root node

听力原文：Just give our office a ring when you return to arrange an appointment.

(A) Try the jewelry shop at the corner.

(B) Yes, that's nice to hear.

(C) All right then, again, what was your number?

(4)

A．

B．

C．

What is wrong with the womans current apartment?

A．It has turned into a dump.

B．It can"t provide heat continually.

C．The landlord is a mean person.

D．The owner doesn"t fix the steam generator.

听力原文： At the turn of the last century, more than 2-million wild horses roamed free across public lands in the American west. But decades of poaching and culling decimated the herds, and by 1971, when they were granted federal protection through the "Wild Free Roaming Horse and Burro Act," there were only around 20,000 left. Today a limited number of mustangs still roam public lands in ten Western states, their numbers regulated by annual roundups by the Bureau of Land Management. Late last year, without public hearings or debate, a provision was slipped into the federal spending bill that allows the BLM to sell thousands of these captured wild horses for slaughter. That' s prompted horse lovers to try to save them.

What is the reason of the decline of the number of the wild horses?

A．Climate change and human activities.

B．The hunting and culling.

C．Fanning and industrializing.

D．Mass killing caused by people.

听力原文： At the turn of the last century, more than 2-million wild horses roamed free across public lands in the American west. But decades of poaching and culling decimated the herds, and by 1971, when they were granted federal protection through the "Wild Free Roaming Horse and Burro Act," there were only around 20,000 left. Today a limited number of mustangs still roam public lands in ten Western states, their numbers regulated by annual roundups by the Bureau of Land Management. Late last year, without public hearings or debate, a provision was slipped into the federal spending bill that allows the BLM to sell thousands of these captured wild horses for slaughter. That's prompted horse lovers to try to save them.

What is the mason of the decline of the number of the wild horses ?

A．climate change and human activities

B．the hunting and culling

C．farming and industrializing

D．mass killing caused by people

听力原文： At the turn of the last century, more than 2-million wild horses roamed free across public lands in the American west. But decades of poaching and culling decimated the herds, and by 1971, when they were granted federal protection through the "Wild Free Roaming Horse and Burro Act," there were only around 20,000 left. Today a limited number of mustangs still roam public lands in ten Western states, their numbers regulated by annual roundups by the Bureau of Land Management. Late last year, without public hearings or debate, a provision was slipped into the federal spending bill that allows the BLM o sell thousands of these captured wild horses for slaughter. That's prompted horse lovers to try to save them.

What is the reason of the decline of the number of the wild horses?

A．Climate change and human activities.

B．The hunting and culling.

C．Farming and industrializing.

D．Mass killing caused by people.

听力原文： At the turn of the last century, more than 2-millinn wild horses roamed free across public lands in the American west. But decades of poaching and culling decimated the herds, and by 1971, when they were granted federal protection through the "Wild Free Roaming Horse and Burro Act," there ware only around 20,000 left. Today a limited number of mustangs still roam public lands in ten Western states, their numbers regulated by annual roundups by the Bureau of Land Management. Late last year, without public hearings or debate, a provision was slipped into the federal spending bill that allows the BLM to sell thousands of these captured wild homes for slaughter. That's prompted horse lovers to try to save them.

What is the reason of the decline of the number of the wild horses?

A．Climate change and human activities.

B．The hunting and culling.

C．Farming and industrializing.

D．Mass killing caused by people.

【T3】

A.WITH

B.THAT

C.THOUGH A.A TREMENDOUS IMPRESSION HAD BEEN MADE UPON ME AS【T1】______I HAD RUN INTO A PERSON

B.MIXING【T2】_______THE SOFT-COAL SMOKE

C.IT WAS【T3】______MY EYES EVENTUALLY CAME TO REST UPON THE DOLL TODAY IS THE ANNIVERSARY OF THAT AFTERNOON IN APRIL A YEAR AGO THAT I FIRST SAW THE STRANGE AND APPEALING DOLL IN THE WINDOW OF ABE SHEFTEL"S TOY SHOP ON THIRD AVENUE NEAR FIFTEENTH STREET, JUST AROUND THE CORNER FROM MY OFFICE, WHERE THE PLATE ON THE DOOR READS:DR.SAMUEL AMORY.I REMEMBER JUST HOW IT WAS THAT DAY:THE FIRST HINT OF SPRING FLOATED ACROSS THE EAST RIVER,【T4】______FROM THE FACTORIES AND THE STREET SMELLS OF THE POOR NEIGHBORHOO

D. AS I TURNED THE CORNER ON MY WAY TO WORK AND CAME TO SHEFTEL"S, I WAS MADE ONCE MORE AWARE OF THE POOR COLLECTION OF TOYS IN THE DUSTY WINDOW, AND I REMEMBERED THE APPROACHING BIRTHDAY OF A SMALL NIECE OF MINE IN CLEVELAND, TO WHOM I WAS IN THE HABIT OF SENDING MODEST GIFTS.THEREFORE, I STOPPED AND EXAMINED THE WINDOW TO SEE IF THERE MIGHT BE ANYTHING SUITABLE, AND LOOKED AT THE CONFUSING COLLECTION OF UNAPPEALING OBJECTS—A RED TOY FIRE ENGINE, SOME LEAD SOLDIERS, CHEAP BASEBALLS, BOTTLES OF INK, PENS, YELLOWED ENVELOPES, AND ADVERTISEMENTS FOR SOFT DRINKS.AND THUS【T5】______STORED AWAY IN ONE CORNER, A DOLL WITH THE STRANGEST, MOST CHARMING EXPRESSION ON HER FAC

E.I COULD NOT WHOLLY MAKE HER OUT, DUE TO THE SHADOWS AND THE FILM OF DUST THROUGH WHICH I WAS LOOKING, BUT I WAS AWARE THAT【T6】______, AS ONE DOES SOMETIMES WITH A STRANGER, WITH WHOSE PERSONALITY ONE IS DEEPLY IMPRESSE

D.