---Where is my pen?

--- I _____it.

A. might lose     B. wouldn’t have lost   C. should have lost  D. must have lost

The man ______ you are talking is in the next room.

A. to whom        B. about whom   C. who         D. whom

— I feel really disappointed not to have got that job.

— Don't worry. Maybe something better will ______.

A. go by        B. take on      C. turn up          D. fall down

We_____ the old scientist________ his contribution________ the country.

A.admire；for；to  B.admire；at；to  C.respect；on；for    D.respect；on；at

Every student is required to watch the teacher carefully before ___ the chemistry experiment.

A. performing      B. taking      C. picking       D. having

I am a stranger here. So the city isn’t familiar ______ me.

A. with     B. by     C. in     D. to

—We want to sit at the table near the window.

—I’m sorry，but it________ already.

A．has taken        B．took     C．was taken    D．has been taken

I would __________it if you would let me deal with this by myself.

A. appreciate       B. inspect         C. protect           D .replace

The farmers suffered a heavy ________because of the terrible storm.

A. zone        B. harm             C. loss                D. insect

Some people waste food，________other people haven’t got enough to eat.

A．when         B．until  C．since          D．while