20、--- Is this machine often in need of repair?

--- No. _______ problems to arise.

A．Never had we wanted                     B．Hardly did we wish  

C．Never do we hope                                 D．Seldom do we expect

19、-- What a hot day! Have you had a drink?

--- Yes. But I’d like to have ________ after work.

A．another           B．one             C．it         D．other

18、Whether ways will be found to stop pollution or not is just _____ worries the public.

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

17、His idea of having weekly family meals together, which seemed difficult at first, has     many good changes in their lives .

A．got through                B．resulted from         C．turned into          D．brought about

16、—Can the project be finished as planned?

—Sure,         it completed in time, we’ll work two more hours a day.

A．having got         B．to get         C．getting            D．get

15、--- What crowded traffic! It took me twenty minutes to go to the station in my car.

--- You _____ have walked there; it was so near.

A．can         B．could          C．must         D．may

14、^{—I can’t find Mr. Liu. Where did you meet him this morning ?}

^{—It was in the factory ______ he paid a visit yesterday.}

^{A．to which          B．that                                 C．which                D．to where}

13、—You haven't said a word about my new coat, Brenda. Do you like it?

— I'm sorry I________anything about it sooner. I certainly think it's pretty on you.

A．wasn' t saying         B．don' t say            C．won' t say        D．didn' t say

12、       the website of the Fire Department in your city, and you will learn a lot about firefighting.

A．Having searched        B．To search        C．Searching        D．Search

11、The manager, _______ it clear to us that he didn’t agree with us, left the meeting room.

A．who has made              B．having made              C．made               D．making