In the summer vacation we____ often take a walk along the river.

A might       B could       C would       D should

 If you listen to me, you ____have some candies, Tommy.

A. are able to       B. shall       C. must       D. need

 This cake is very sweet. You _____ a lot of sugar in it.

A. should put       B. could have put       C. might put      D. must have put

 The World Wide Web is sometimes jokingly called the World Wide Wait because it ______ be very slow.

A. should         B. must        C. will         D. can

 I have lost one of my gloves. I _____ it somewhere.

A. must drop                    B. must have dropped

C. must be dropping              D. must have been dropped

 Oh, I’m not feeling well in the stomach. I ______ so much fried chicken just now.

A. shouldn’t eat     B. mustn’t have eaten     C. shouldn’t have eaten    D. mustn’t eat

 — Write to me when you get home.

— __________.

A. I must        B. I should         C. I will        D. I can

 The poor boy _____ the test again; in that case, his mother will be very disappointed.

A. must have failed    B. might fail      C. could have failed   D. should fail

 —Don’t forget to take the message to my teacher.

—_____.

A. Yes, I will        B. No, I won’t      C. I don’t’ think so   D. Sorry, I don’t

 He _____ without saying good-bye to them, for he always has good manners.

A. mustn’t have left    B. may not leave      C. shouldn’t have left   D. can’t have left