This is the best hour I can _________ I_________ in the past twelve years.
#38830
A
know;have had 
B
remember;had
C
think of;have had 
D
think out;had
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What _____you ______ at 10:00 last night?
#40223
A
did; do
B
were; doing
C
was ;doing
D
have; done
 John, as well as his classmate, ______excited ______so many stars yesterday.
#41669
A
was, seeing
B
are, seeing
C
was, to see
D
were, to see
– Look at these factories. I hate them. They____ many rivers here. --Yes. Something ______ to stop the pollution.
#39701
A
polluted, must do
B
had polluted , must be doing
C
have polluted , must be done
D
were polluting, must be done