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