—They haven't finished the work up to now. —Well, they ______.
A: should
B: should have
C: would
D: must have
A: should
B: should have
C: would
D: must have
举一反三
- --They haven’t finished the work up to now．---Well，they______. A: should have B: should C: ought to D: ought have
- It is already ten o’clock and the game _____ by now. A: should have finished B: will have finished C: must have finished D: must finish
- He the work yesterday, but he didn't. A: must have finished B: need have finished C: finished D: should have finished
- Ruth _______ received my letter; otherwise she would have replied by now. A: must have B: should have C: couldn't have D: ought to have
- The computer doesn’t work well, so something __1__wrong. A: can have gone B: should have gone C: must have gone D: ought to have gone