28、With a lot of mathematical problems __________, Marry went to bed.

A. solve              B. solved            C. solving       D. to solve

27、Never before__________ such a smoke in the room.

A. have I read      B. did I read         C. do I read   D. am I reading

26、We accepted the suggestion that ________ put forward by Jack at the meeting yesterday.

A. was                B. should be            C. would be          D. be

24、一Is Johnson on duty today?

一It ________be him．It’s my turn.

A．may not          B．won’t               C．mustn’t         D．can’t

23、There are a lot of spelling mistakes；________it’s quite a good article.

A．even so          B．even though      C．though           D．instead

22、_________money，it remains to be seen whether we can put the idea into practice.

A．Lacking          B．Lacked           C．To lack          D．Having lacked

21、The job is great ________salary．It has its disadvantages，though．

A．in case of           B．a(chǎn)s a result of

C．in terms of          D．except for

20、—Can I use your car?

—I’m terribly sorry．It________，and I have been walking to work recently.

A．didn’t work                         B．hasn’t worked

C．doesn’t work                        D．won’t work

19、In that country，August 31st is a national festival ________ everyone，men and women，old and young，sings and dances happily in the streets.

A．where            B．when             C．that             D．a(chǎn)s