If you __________ there may not be enough drug in your body to work properly.

What may happen to you, if you ______ in your school work？A．fall downB．fall apartC．fall of

If you travel in a foreign country, a tour ______ may save you a lot of trouble.A．director

If you ride your bike too fast, there may be ______ accident. [ ]A. a B. the C. an D.不填

If you like a lot of human interaction you may___

If you make a cat angry it may_________you.

If I________there yesterday I would have given you a hand.