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—_________does Tom exercise? —Every day.
#56103
A
How often
B
How many
C
How long
D
How far
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－When did your father come back last night?－He didn’t come back_________ he finished all the work.
#57188
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until
B
while
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if
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that
We don’t know Jack        Bruce.
#56908
A
and
B
or
C
about
D
of
 ______he has a lot of money, ______he is not very happy.
#56889
A
Although , but
B
Although, /
C
Although ,so
D
but , /
Amy has ten baseballs,                  she doesn't play them.
#55678
A
and
B
with
C
but
D
so
Boys and girls, __________ you choose to wear, your clothes should be clean.
#55826
A
however
B
whatever
C
whenever
D
wherever