— The terrible accident is under investigation．— Actually, quicker action _____ those workers trapped in the mine．
#87562
A
might have saved
B
must have saved
C
should have saved
D
could have saved
推荐题目
---- Did you visit the Big Ben in London?---- No, we ______ it, but we spent too much time shopping.
#90301
A
could visit
B
could have visited
C
must ahave visited it
D
can have visited
The doctor said I was over-weight. If only I _____ less!
#89982
A
ate
B
have been eating
C
have eaten
D
had eaten
As is required by their employer, the employees ______ finish the project within this month.
#86421
A
could
B
shall
C
may
D
should