The concert ( ) wonderful last night.
A: must have been
B: must be
C: may be
D: can’t be
A: must have been
B: must be
C: may be
D: can’t be
举一反三
- A: We went to Italy for a holiday last year.B: That __________ nice. A: can be B: must be C: must have been D: can’t have been
- Had it rained last night, the road _____ wet now. A: would be B: must be C: would have been D: must have been
- Since the ground is white, it ____ last night. A: had snowed B: must have snowed C: must be snowing D: must have been snowing
- It must have rained last night, ______ it A: mustn' t B: can' t C: didn' t D: needn' t
- 17 Mary ________ his homework late last night, so she felt sleepy in class this morning. A: must do B: must be doing C: must have been doing D: must have been done