2018成人高考专升本《英语》备考习题及答案（13）

　　1. The river ___A____ to the east. It is the second longest river in the country.

　　A.runs B.is running C.run D.ran

　　2. Look! The boy ____B____ a model ship and he ________ it in the lake now.

　　A.made; is sailing

　　B.has made; is sailing

　　C.made; sails

　　D.has made; sails

　　3. Be quiet! They ____A___ a meeting in the next room.

　　A.are having

　　B.have

　　C.were having

　　D.will had

　　4. When Jack arrived, he learned Mary ___D_____ for almost an hour.

　　A.had gone

　　B.had set off

　　C.had left

　　D.had been away

　　5. When did you see her? What ____A____ then?

　　A.was she doing

　　B.did she do

　　C.is she doing

　　D.has she hone

　　6. Since the road is wet, ___A_____last night.

　　A.it must have rained

　　B.it must rain

　　C.it must be raining

　　D.it must have been raining

　　7. I ___B_____ help. I can do it myself.

　　A.need to

　　B.don’t need

　　C.needn’t

　　D.need

　　8. Mr. Baker, a dozen students want to see you. ___C_____ they wait here or outside?

　　A.Should B.Will C.Shall D.Are

　　9. I’ve come to ask him for the book. That’s why I _____D___ wait until he comes back.

　　A.need B.should C.ought to D.have to

　　10. “Must we start the experiment now?” “No, you___B_____.”

　　A.won’t B.needn’t C.can’t D.may not

　　11. The medicine_____B___ cool, clean and dry.

　　A.must keep

　　B.must be kept

　　C.must be keep

　　D.must be in

　　12. The song ____A____ by children.

　　A.is often sung

　　B.was often sung

　　C.sings

　　D.has often sung

　　13. My sister _____C___ by Grandma while my parents are away.

　　A.will be taken care

　　B.will take care of

　　C.will be taken care of

　　D.will be taken care

　　14. Electricity ____B____ by the Greeks a good many years ago.

　　A.was first found

　　B.was first discovered

　　C.has first been discovered

　　D.was seen first

　　15. Great changes ____C____ in China since 1978.

　　A.take the place

　　B.took the place of

　　C.have taken place

　　D.have been taken place