How long have astronomers studied the planets and other objects in space？

A.much time

B.long

C.long a time

D.many times

A.YES

B.NO

C.NO

D.NO

(作文)1.What is your biggest dream？

2.Why do you have it？ For how long have you got it？

3.What are your plans to achieve your dream？

About how long have sharks lived on the planet？

A．25 million years.

B．150 million years.

C．350 million years.

D．500 million years.

How long will the man have to wait for a one-bedroom apartment？

A．6 months.

B．It is readily available.

C．3 weeks.

D．2 days,

听力原文：W: How beautiful! How long have you had it？

M: Only two weeks.

W: How far have you been in it？

M: Not too far. Just to a picnic.

What are the speakers talking about？

A．Maybe a picnic.

B．Maybe something new.

C．Maybe a new car.

A、how long have you lived here

B、how long you lived here

C、how long you have lived here

D、you have lived here how long

A、How long time are you studying

B、How long do you study

C、How long have you been studying

D、How long time have you studied

A、I went to Hong Kong with my friends.

B、I have stayed there for a month.

C、I have been to Hong Kong.

D、It is great.