20、As some famous singers will appear at the pop concert, ________ likely to be a large audience.

A. it’s                   B. here’s                C. there’s                     D. that’s

19、We can no longer ________ to consider water an almost free resource that we can use as we like.

A. permit               B. afford               C. expect               D. spare

18、―Where is the plane? I can’t see it.

―It went off its ________ to keep away from the sudden storm.

A. road                  B. course               C. flight                 D. direction

17、John thought he was ________ when the manager asked him for the advice on the new product.

A. something         B. anything            C. somebody         D. anybody

16、―Hurry, John!

―Oh, damn! Both my legs are nearly to give out. I ________ for hours.

A. had walked                                    B. walked             

C. have been walking                         D. am walking

15、 A study shows that students living in non-smoking dormitories are less likely to ________ the habit of smoking.

A. make up            B. turn up              C. draw up            D. pick up

14、________ email is an increasingly popular means of communication, I prefer writing letters.

A. As                    B. While                C. Since                D. Because

13、―Has the police known about the accident?

―Yes. They ________ immediately.

A. informed                                        B. were informed  

C. have informed                                D. were informing

12、I really ________ thank you enough. It’s been an wonderful day.

A. needn’t             B. should               C. must                 D. cannot

11、Why not get some work experience first ________ go straight on to university?

A. or rather            B. other than          C. more than          D. rather than