19. Harry has been reading all day -he ______ be tired.
A. should B. has got to C. has to D. must
18. Our teacher demanded our report ________ before five.
A. must be handed in B. be handed in
C. should hand in D. need be handed in
17. ---Catherine, I have cleaned the room for you.
---Thanks. You_____ it. I could manage it myself.
A. needn¨t do B. needn¨t have done C. mustn¨t do D. shouldn¨t have done
16.-Where is my cell phone? I can find it nowhere.
-You it stolen while on the bus.
A. must have B. should have had
C. may have had D. can have
15. She suffered a mental disease for quite some time and in the end she _____ go into a mental hospital.
A. had to B. must C. would like to D. could
14. - Finally I got to my grandmother¨s home on foot.
- Really? You _______ a ride there.
A. must have taken B. could have taken
C. shouldn¨t have taken D. couldn¨t have taken
13. Since you have come so far with your experiment��you carry it through to the end.
A. may B. might C. may well D. may as well
12. �C Lucy doesn¨t mind lending you her dictionary.
-- She ______ . I've already borrowed one.
A. can't B. mustn't C. needn't D. shouldn't
11. Jack¨s ill, so they ______ change their plans.
A. must B. should C. have got to D. ought to
10. Excuse me, six, Mr. White has arrived. he wait outside or just come in ?
A. Shall B. May C. Could D. Must