The teacher suggested that Mary ________the English contest.

[　　]

A．joins

B．joined

C．take part in

D．takes part in

The beautiful girl is engaged ________a young writer who is engaged ________writing.

[　　]

A．to, in

B．to, with

C．in, to

D．with, in

I'd rather ________at home than ________to the concert.

[　　]

A．sleep…going

B．sleeping…go

C．slept…going

D．sleep…go

Mrs. Smith doesn't think the watch her husband bought for her is ________.

[　　]

A．worthy of buying

B．worth to be bought

C．worth two hundred dollars

D．worthy 200 US dollars

He has no choice but ________.

[　　]

A．obeying

B．to obey

C．obey

D．to be obeyed

I ________his courage.

[　　]

A．cannot help but be admired

B．cannot help but admiring

C．cannot but admire

D．cannot but admiring

I don't mind lending him the book ________ he sends it back to me before the end of the month.

[　　]

Questions and exercises are given by the computer ,which decides ______ to move the student ahead, review an easier level, ________ give more work on the same level.

[　　]

It was raining. We had no choice but ______ our plan.

[　　]

It was ________ that day that many people went to swimming.

[　　]