It is vital that every piece of equipment ________ before the experiment.
#87434
A
is checked
B
will be checked
C
be checked
D
must be checked
推荐题目
Had it been possible I would have gone to the movies but I _____ busy.
#90240
A
had been
B
am
C
was
D
would be
Thank you for all your hard work last week. I don’t think we ______ it without you.
#87231
A
could have managed
B
can manage
C
could manage
D
can have managed
-------There were already five people in the car but they managed to take me as well . ------- It ______ a comfortable journey .
#89069
A
can’t be
B
shouldn’t be
C
mustn’t have been
D
couldn’t have been
I didn’t see your sister at the meeting. If she __________, she would have met my brother.
#87004
A
has come
B
did come
C
come
D
had come
The boy student is poor in health now; his parents wish that his health _____when he grows up
#88103
A
can improve
B
could improve
C
can be improved
D
could be improving