By the time she ________ home, her parents will have prepared some delicious food for her.

A．will get

B．will have got

C．is getting

D．gets

---Don't put the waste on the ground.
---Oh, I'm very sorry. I ________ the dustbin（垃圾箱） there.

A．don't see

B．isn't seeing

C．didn't see

D．haven't seen

So far this year we ________ a fall in house prices by between 5 and 10 percent.

A．saw

B．had seen

C．have seen

D．see

______ of danger in the street at night, she had to go home, with a friend _____ her.

A．Warned ; accompanied	B．Warning; accompanying
C．Having warned; accompanied	D．Having been warned; accompanying

Jack doesn’t smoke now, but he _______ for almost twenty years.

A．was smoking

B．had smoked

C．has smoked

D．smoked

Would you please keep silent? The news that the milk contains a harmful chemical______ and I want to listen.

A．has been broadcast	B．is broadcast
C．is being broadcast	D．is broadcasting

He______on the farm for twenty years and now he is a teacher.

A．has worked

B．had worked

C．worked

D．works

— Have you graduated from collage?
— Yes, ________.

A．I studied French for two years.	B．I have been studying French.
C．I have studied French for two years.	D．I had studied French for two years.

— Have you got any job offers?
— No. I ______.

A．waited

B．was waiting

C．have waited

D．am waiting

—What ______ when the earthquake happened on May 12^th ?
—Er, I was having a geography class in the classroom.
A. are you doing        B. did you do   C. were you doing  D will you do