b. will start c. start d. shall start
题目24
--____I put my coat here? --Sorry, you ______. 选择一项：
a. May; can't b. May; mustn't c. Do; don't d. can; needn't
题目25
You ____ buy some reference books when you go to college. 选择一项：
a. must
b. will have to c. have to d. must to