—I called you yesterday evening, but nobody answered.—Oh, ______ at that time.
#52123
A
I’m cooking
B
I cooked
C
I cook
D
I was cooking
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He looks upset. Let’s try to _____.
#63734
A
cheer up him
B
cheer him up
C
cheer he up
D
cheer up he
It’s time for supper now.Let’s__________ it.
#54658
A
stop having
B
stop to have
C
to stop to have
D
stopping to have
It’s not polite to make fun of others when they are in trouble . 
#58615
A
have fun
B
enjoy fun
C
laugh at
D
look for fun
_________that river ________very clean?
#54641
A
Did ;use to
B
Did ;use to be
C
Does ;used to
D
Does ;use to be