—What do you think we can do for our aged parents？—You　　　　do anything except that you visit them as often as possible. 

We ________ such great achievements without your efforts. Thanks a lot.

“I’ve told him about it.” “But I’d rather you ______.”

 You _______ late for yesterday’s class meeting, as it was so important.

It has been announces that all takers ____ remain in their seats until all the exam papers have been collected.