11. ___________ the lab, they were taken to see the library.
A. Having shown
B. Having been shown
C. In order to show
D. To have been shown
12. The Olympic Games, __________ in 776 BC, did not include women players until 1912.
A. first playing
B. to be first playing
C. first played
D. to be first playing
13. Just after putting away the dishes, ___________.
A. the doorbell rang loud
B. Nancy heard the doorbell ring
C. someone knocked at the door
D. the doorbell was rung
14. On his visit to the school years later, Peter was astonished to find himself _________ at once.
A. remembering
B. remembered
C. being remembered
D. having remembered
15. All the scientists _________ will attend the lecture.
A. who invited
B. invited
C. that have invited
D. have been invited
16. ___________, blood ran down his nose.
A. He fell to the ground
B. Falling to the ground
C. When he fell to the ground
D. Having fallen
17. --- Why not light a lamp there?
--- There is a __________ lamp already.
A. lighting
B. lit
C. lighted
D. litted
18. We found the ground covered with ___________ leaves.
A. fallen
B. fell
C. falling
D. having fallen
19. Hearing the news, _____________.
A. and he couldn’t keep back his tears
B. tears came to his eyes
C. she had began to cry
D. she burst into tears
20. __________ from you for months, we missed you very much.
A. Having not heard
B. Not having heard
C. Not heard
D. Not having received
参考答案：
1-10 CCCBBDACBB
11-20 BCBBBCCADB
