It’s nearly 7 o’clock. Helen _______ com
问题:
It’s nearly 7 o’clock. Helen _______ come, but let’s wait for her for another 5 to 7 minutes.
A.couldn’t
B.can’t
C.mustn’t
D.may not
It’s nearly 7 o’clock. Helen _______ come, but let’s wait for her for another 5 to 7 minutes.
A.couldn’t
B.can’t
C.mustn’t
D.may not