Had they known what was coming next, they   second thoughts.
#86845
A
may have
B
could have
C
must have had
D
might have had
推荐题目
He commanded the students ______ the classroom before he returned.
#86720
A
did not leave
B
leave not
C
not to leave
D
not leaving
The old lady insisted that her daughter ____ still alive and that she ____ at once. 
#87084
A
was; was operated
B
was; be operated
C
should be; should be operated
D
be; should be operated
This cake is very sweet. You _____ a lot of sugar in it. 
#90559
A
should put
B
could have put
C
might put
D
must have put