--- Who told you my address ? --- I don’t remember clearly. It _____ Li Mei.  ---It _____ Li Mei. She doesn’t know it.
#88154
A
can be; mustn’t be
B
may have been;must have been
C
may have been; can’t be    
D
must have been ; can’t have been
推荐题目
Great efforts to increase grain production       if food shortages are to be avoided.
#88013
A
could be made
B
must be made
C
might be made
D
would be made
.Mary is so wet. She _______ in the rain.
#88015
A
must be caught
B
must have been caught
C
should have been caught
D
can have been caught
I apologize if I _______ you, but I assure you that it was unintentional.
#86712
A
should offend
B
were to offend
C
had offended
D
offended