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
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They urged that the library_______ open during the vacation.
#87341
A
must be kept
B
is kept
C
would be kept
D
be kept
________ your letter, I would have set off two days ago.
#86498
A
If I could have received
B
Should I receive
C
If I received
D
Had I received
Elise remembers many things exactly as if it ______ yesterday.
#89434
A
was happening
B
happens
C
has happened
D
happened
We shouldn't have come north for Christmas vacation. If we _______, we wouldn't be stuck in the snow right now.
#87463
A
wasn't
B
didn't
C
hadn't
D
weren't
The teacher requested that we ______ the classroom after using it.
#87265
A
cleaned
B
cleaning
C
to clean
D
clean