It’s a shame ______ able to give them any advice.  
#87215
A
not to have been
B
to have not been
C
to have been not
D
to not have been
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
 It is required in our school that lights in students’ rooms ______ off by 11o’clock.
#87254
A
be switched
B
would switch
C
should switch
D
must be switched
As it turned out to be a small house party, we        so formally.
#86499
A
needn’t dress up
B
did not need have dressed up
C
did not need to dress up
D
needn’t have dressed up