— You’d better ask your son too much computer games .It’s bad for him .A. to give up playB. not to give up playingC. to give up playing
Jack wasn't saying anything, but the teacher smiled at him __________ he had done something very clever.
The experts were doing their experiment in the lab, __________ what happened outside.
The old man stood by the window, __________ his eyes on the people playing in the park.
If you are a man who always __________ to do everything, you are unlikely to achieve your goal.
Many people are against the new policy while some lawyers are __________ it.