----          you do me a favor? -----Sure. With pleasure.
#87743
A
Must
B
Need
C
Should
D
Could
推荐题目
— I’ll tell Mary about her new job tomorrow. — You ______ her last week. 
#89264
A
ought to tell
B
would have told
C
must tell
D
should have told
Teachers suggested parents        their children under 12 to ride bicycles to school for safety.
#87502
A
shouldn’t allow
B
don’t allow
C
mustn’t allow
D
couldn’t allow
Since she is angry, we ____ her alone.
#88147
A
had better to leave
B
would rather to leave
C
might as well leave
D
should as well leave
——Tom is never late for work. Why is he absent today?—— Something _____to him.
#87520
A
must have happened
B
can have happened
C
must happen
D
can happen