—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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We consider it necessary that a plan _______ before doing the work.
#101423
A
is made
B
will be made
C
should be made
D
made
——Can you give me some advice on what I said just now?—— Sorry, my mind ______ .
#102959
A
has wondered
B
had wondered
C
is wondering
D
was wondering
—I'm sorry to interrupt you, but I don't follow you now.—Sorry, I _____ it clear about my plan.
#100534
A
didn't make
B
hadn't make
C
wasn't making
D
haven't made
-----They used to be good friends, but now they are like strangers. ----- How _____ this ______?
#104151
A
were; come about
B
did; come about
C
were; taken place
D
were; happened