The teacher asked the students to do the experiment __________ small groups.

A. to B. for C. on D. in

The boys enjoy playing basketball __________ many of the girls relax by playing ping-pong.

A. while B. or C. since D. if

—Why didn’t you answer the phone when I called you last night?

—Sorry, I __________ a bath upstairs.

A. am having B. have C. was having D. had

We should go to the cinema early. __________, there won’t be any tickets left.

A. However B. Otherwise C. Besides D. Instead

Susan __________ for our newspaper any more. She has been hired by a fashion magazine.

A. doesn’t work B. wouldn’t work C. didn’t work D. hadn’t worked

—I’ll call Bob and tell him the good news.

—You __________ do that. He was here just now and heard it.

A. couldn’t B. mustn’t C. shouldn’t D. needn’t

People around the country were excited __________ the astronauts came back to the earth safely.

A. unless B. but C. until D. because

—I’m going to see John tomorrow.

—Don’t tell him the result of his medical examination when you __________ to him.

A. talk B. have talked C. will talk D. talked

With the help of __________ people, I can be more successful in volunteer work.

A. serious B. generous C. nervous D. dangerous

I know the writer __________ story won a prize for the most imagination.

A. that B. which C. whose D. what