20.It　　 to me that I should pay a visit to my friend, Jane.

　A.was happened　　 B.appeared　　 C.was occurred　 D.occurred

e and see me whenever　　　 .

　A.you will be convenient　 　　B.it will be convenient to you

　C.you are convenient　　　　　 D.it is convenient to you

19.We delayed　　 the goods to the farm because of the bad weather.

　A.to send　　 B.send　　　 C.sending　　 D.in sending

18.He was not brave. He　　 jumped down from a very tall tree.

　A.dare not　　 B.dared not　　 C.dares not　　 D.dare not to

17.　　　 in 1636, Harvard is one of the most famous universities in the

　 United States.

　 A.Being founded　　 B.It was founded　 C.Founded　 D.Founding

16.I　　　 to bring down the price of the computer, but the salesman

　 refused to.

　 A.promised　　 B.managed　　 C.wanted　　 D.attempted

15.A lot of tests　　　 on a large number of rats since then.

　 A.have been carried out　　　　　 B.were carried out

　 C.have been carried on　　　　　 D.were carried on

14.When it is clear, I can see　　　 in the sky.

　 A.dozen star　　　　　　　　　 B.several dozen stars

　 C.dozens stars　　　　　　　　 D.dozens of star

13.　　 surprises me most is that she doesn't even know　　 the

　 difference between the two lies.

　 A.What; where　 B.What; what　　 C.That; where　 D.That; what

12.Those who are not　　　 with the progress they have made will have

　 greater success.

　 A.proud　　 B.afraid　　 C.popular　　　tent

　从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

11. Driving a car is not as difficult as you imagine, if you　　　 the

　 rules.

　 A.depend on　　 B.believe in　　 C.turn to　　 D.stick to