21、Because I’ve an important meeting to attend, I can’t come to your party this evening, _____ I’d like to.

A. much as       B. as much        C. much so         D. so much

20、 I’m sorry you’ve been waiting so long, but it’ll still be some time        Brian gets back.

A. before          B. since           C. till            D. after

19、Great changes have taken place in that school. It is no longer        it was 20 years ago,       it was so poorly equipped.

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

18、--Where did you get to know her?

--It was on the farm        we worked.

A. that            B. there           C. which           D. where

17、--       I book a table for dinner a few days ahead of time?

--Yes, you        . The restaurant is always full, especially during the holidays.

A. Must...will     B. Must...can      C. Shall...shall   D. Shall...must

16、--She looks very happy. She        have passed the exam.

--I guess so. It’s not difficult after all.

A. should          B. could           C. must            D. might

15、Eyes are known        a powerful part of human body.

A. being           B. having been     C. to be           D. to have been

14、--They are quiet, aren’t they?

--Yes. They are accustomed        at meals.

A. to talk         B. to not talk     C. to talking      D. to not talking

13、Years of efforts        when they saw the pictures of the moon sent back to the earth by Chang’e-1.

A. paid off        B. took off        C. showed off      D. went off

12、Modern plastics can        very high and very low temperatures.

A. stand           B. hold            C. carry           D. support