Laughter, along with an active sense of humor, ______ protect you against a heart attack, according to a recent study.
#100012
A
have helped
B
helped
C
help
D
helps
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Unfortunately, when I arrived, Mary , so we only had time for a few words.
#103471
A
was just leaving
B
just left
C
has just left
D
had just left
Kathy told me that all the doors and windows _______ when she arrived this morning.
#101604
A
have cleaned
B
have been cleaned
C
had cleaned
D
had been cleaned
—Tom, you didn’t come to the party last night? —I __________, but I suddenly remembered I had homework to do.
#104599
A
had to
B
didn’t
C
was going to
D
wouldn’t
Mr. Wang ____ two boys to send the sick boy to the nearest hospital
#101645
A
arranged
B
has arranged
C
had arranged for
D
has arranged for
George has arrived, but I did not know he ______ until yesterday.
#103817
A
comes
B
will come
C
is coming
D
was coming