It rained heavily, so we______stay at home watching TV or surfing the Internet all day.

A. could B. had to C. must D. can

（题文）—Oh, the traffic is so heavy.

—Let’s change _______ route to the airport.

A. other B. others

C. the other D. another

My family and I _______ looking forward to _______ my grandparents.

A. am; visit B. are; visit C. am; visiting D. are; visiting

There will be ________ exam the day after tomorrow.I have to prepare for it.

A. a B. an C. the D. /

You shouldn't drive for more than three hours ________ relaxing.It's too dangerous.

A. on B. without C. through D. in

Mary is serious about her study.She won't go to bed ________ she finishes all her homework.

A. if B. because C. when D. until

—Do you have time for a coffee?—Sorry，I'm really busy today.Maybe ________ time.

A. another B. the other C. any D. every

—I'm not ________ that Joe didn't keep his promise.

—But for me，it was a piece of ________ news.

A. surprising；surprised B. surprising；surprising

C. surprised；surprising D. surprised；surprised

—When did you go to bed last night?

—I didn't go to bed ________ I finished reading the novel.

A. if B. until C. though D. because

—Did Judy invite you ________ dinner with her? —Yes，but I refused.

A. to have B. have C. having D. had