—I don’t understand why you didn’t go to the lecture yesterday afternoon.—I’m so sorry.But I________my homework.                       (2013·湖南,34)
#99429
A
had done
B
was doing
C
would do
D
am doing
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--The window is dirty.----I know. It ______ for weeks.
#101363
A
hasn’t cleaned
B
didn’t clean
C
wasn’t cleaned
D
hasn’t been cleaned
 —Why don’t we choose that road to the village?—The bridge to it ______.
#101611
A
is repaired
B
has repaired
C
is being repaired
D
will repair
Look, here ___ the bus!
#103964
A
comes
B
is coming
C
will come
D
has come