一般地讲，处于成长阶段或成熟阶段的行业具有高的投资价值；处于初创阶段的行业具有高的投资风险。()此题为判断题(对，错)。

What do we know about the woman's learning knitting？

A．She learned it when she was a small child.

B．She started it when she was a student.

C．She didn't learn it until she left school.

D．She started it after she was married.

What troubles Tina and Mark most is that ______.

A．their daughter isn't as lovely as before

B．they can't read their daughter's mind exactly

C．they don't know what to say to their daughter

D．their daughter talks with them only when she needs help

A．talked

B．had been talking

C．had talked

D．would talk

A、She didn't know how to book the right hotel.

B、She didn't know how to book the right restaurant.

C、She didn't know how to book the right flight ticket.

D、She didn't know how to book the right cinema ticket.

Not until Mr. Smith came to China ______ what kind of country she is.

A．he knew

B．he didn't know

C．did he know

D．he couldn't know

Not until I came to China ______ what kind of a country she is.

A．I knew

B．I didn't know

C．I did know

D．did I know

I didn't know ______to deal with when I worked in the office on thc first day.

A．what

B．how

C．where

D．when

After graduation I went to SomaliA．When I first set foot on strange land,I didn’t know what the future had in store for m

E．[ ] A．不填; a

B．the; the

C．the; 不填

D．the; a

A．talked

B．had been talking

C．had talked

D．would talk