Smiling is ________universal language and it is one of ________ ways to express friendship.
#8494
A
the; /
B
a; /
C
an; the
D
a; the
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I often have conversations with John over ______ telephone, while I keep in touch with Tom by ______ letter.
#8099
A
/;the
B
/;a
C
the; /
D
the; a
Most scientists seem to agree that ________ certain limit should be set on________ consumption(消费) of cars to ease air pollution.
#7824
A
a; the
B
/; the
C
the; /
D
the; the
He missed gold in the high jump, but will get second chance in the long jump.
#8067
A
the, the
B
/, a
C
the, a
D
a, /
It takes us ________ hour or more to go to my hometown by ________ train.
#9446
A
an; a
B
a; an
C
a; /
D
an; /