—— Do you still remember the day when we went to the Great Wall? —— I can’t remember it well, but______sometime last autumn? 
#89872
A
might it be
B
could it have been
C
could it be
D
must it have been
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I didn’t find his office. If only I______his address!
#90228
A
remember
B
remembered
C
had remembered
D
would remember
 The plant is dead. I _____ it more water.
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A
will give
B
would have given
C
must give
D
should have giv
The people from all over the world demand that reforms______.
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A
have been done
B
be done
C
are done
D
might be done.