1.____ time ,he will make a first-class tennis player .

A Having given B To give C Giving D Given

2 ___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

3 Unless __to speak ,you should remain silent at the conference .

A invited B inviting C being invited D having invited

4 ___,but he still couldn’t understand it .

A He had been told many times B Having been told many times

C Told many times D Although he had been told many times

5 When first ___to the market , these products enjoyed great success .

A introducing B introduced C introduce D being introduced

6 There seemed to be nothing ___to do but ___for the doctor .

A leave / send B left / to send C left / send D leaving / send

7____everywhere , the wolves had no where ___themselves .

A Hunting / hiding B To hunt / to hide

C Hunted / hiding D Hunted / to hide

8 . The ___ morning, the father came into the lonely house, ___ by his naughty boy.

A. following, following B. followed, followed

C. following, followed D. followed, following

9. Mrs. White was glad to see the nurse ___ after her son and was pleased to see the boy well ___ care of in the nursery.

A. looked; taken B. looking; taken

C. looked; took D. looking; taking

10. _______ more attention, the tree could have grown better.

A. Given B. To give C. Giving D. Having given.
11. The computer center, ________ last year, is very popular among the students in this school

A. open B. opening C. having opened D. opened

12. ________ in thought, he almost ran into the car in front of him.

A. Losing B. Having lost C. Lost D. To lose

答案：DCABB  BDCBA  DC