11._______ from the outer space， our earth looks like a water-covered ball.
A. Having seen
B. Seeing
C. Seen
D. Having been seen
12.I don‘t mind _______ the decision as long as it is not too late.
A. you to delay making
B. your delaying making
C. your delaying to make
D. you delay to make
13.The picture _______ on the wall is painted by my nephew.
A. having hung
B. hanging
C. hangs
D. being hung
14._______ such heavy pollution already， it may now be too late to clean up the river.
A. Having suffered
B. Suffering
C. To suffer
D. Suffered
15.They pretended to be working hard all night with their lights _______.
A. burn
B. burnt
C. burning
D. to burn
16.“Well， I‘ll tell you a secret ……” said the boy， with his mouth almost _______ my ear.
A. touched
B. touching
C. touch
D. to touch
17.I don‘t feel like _______ anything now.
A. to eat
B. eating
C. having eaten
D. to be eating
18.Since he left the university， he _______ in an accounting company.
A. has been working
B. had worked
C. had been working
D. was working
19.By the time the tour ends， the football team _______ twenty matches in four countries.
A. will play
B. will be playing
C. will have played
D. will have been playing
20.People who can neither hear ______ speak talk to each other with the help of their fingers.
A. or
B. nor
C. but
D. and
