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18、Iraq is faced with lots of trouble, ______ the financial problem is not the worst.

A. which        B. with which          C. that         D. of which

17、The government is trying to do something to _______ better understanding between the two countries.

A. promote         B. raise         C. appeal         D. arise

16、--Have you known each other for long?

--Not very long, ______ we started to work in the company.

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

15、Their valuables ______ in the hotel safe, the young couple went window-shopping.

A. depositing        B. deposited         C. to deposit        D. having deposited

14、There is a total ______ on drinking and driving for the sake of everybody’s safety.

A. control        B. command         C. desire        D. ban

13、While many teachers have welcomed the efficient class, some are still ______ about its results.

A. sceptical        B. explicit        C. sensitive        D. certain

12、With proper measures, the economy in China is beginning to _______ again.

A. rise up        B. pack up        C. pick up        D. take up

11、The scientist delivered a report on ______ there was little snow last year in North China.

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

10、We ______ here at lunch time; we were delayed at the airport, though.

A. could be                       B. should be

C. must have been                 D. would have been

9、--How much can you pay me for the service, sir?

--You ______ $200, if you do nicely.

A. will pay       B. are paying        C. will be paid        D. are paid