Don’t make a noise! They _______on a physics problem now.
If I can’t finish _____________my homework now, I’ll go on with it after supper.
__________there are many advantages of television, some people are not satisfied with it.
The old lady _________along the road when the car hit her suddenly.
The President __________China in the near future.
You should go to bed early, ____________you will feel tired in the morning.