Question 01. There's no reply. He__________ be out.

A. can                          B. must                       C. can't                        D. mustn't

Question 02. I've got no idea where she is. Try the library. She__________ be in there.

A. might                      B. can't                        C. must                        D. will

Question 03. Look at the way that guy's walking. He__________ be drunk!

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

Question 04. “I've been working since 5 this morning.” “____________________”

A. 'You would be exhausted!'                       B. 'You can be exhausted!'

C. 'You must be exhausted!'                         D. 'You might be exhausted!

Question 05. You look so tired! You_________ out too late last night.

A. must have been     B. had been                C. had to be                 D. should have been

Question 06. You__________ left it in the office, I suppose.

A. could have             B. might have             C. must have              D. A and B

Question 07. You__________ be hungry again. You've only just had dinner!

A. can't                        B. mustn't                   C. might                      D. may not

Question 08. I’ve been waiting for hours. You________ to tell me you would come late.

A. needn’t have phoned                                B. must have phoned

C. oughtn’t to have phoned                          D. should have phoned

Question 09. The fact that the Egyptians could lift and place the huge stones correctly in the positions is still a mystery. They________ a special kind of machine.

A. might be used        B. can have used        C. can’t use                 D. might have used

Question 10. They__________ got there already. They only left ten minutes ago.

A. can't                        B. must                       C. must have              D. can't have

Question 11. Judging by the present evidence, we think he__________ used a disguise.

A. might have             B. probably                C. might                      D. A and B

Question 12. Police are convinced the paintings__________ taken out of the country already.

A. may have               B. must have              C. must have been     D. might have been

Question 13. They__________ got in through the window - it's on the 21st floor!

A. can have                 B. must have              C. can't have               D. might have

Question 14. She hasn't eaten anything since yesterday. She__________ be really hungry.

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

Question 15. I put my keys on the table, but now it's gone. Someone__________ have taken it.

A. may                         B. had to                     C. should                    D. would rather

Question 16. Daisy is reading her English test because she has a test tomorrow. She__________ be studying.

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

Question 17. Tom has just got a new job. He__________ be very pleased.

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

Question 18. Tom painted his room black. It looks dark and dreary. He__________ have chosen another color.

A. should                    B. must                       C. could                       D. may

Question 19. You__________ throw litter on the streets.

A. mustn't                   B. couldn't                  C. needn't                   D. won't

Question 20. He had to work hard so that he__________ his family.

A. may support          B. supported              C. can support            D. might support