In communication, a smile is usually ______ strong sign of a friendly and ______ open attitude.
#9360
A
the, /
B
a, an
C
a, /
D
the, an
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The most important thing about cotton in history is ______part that it played in _______Industrial Revolution.
#9312
A
∕；∕
B
the；∕
C
the; the
D
a; the
Have you heard ____ news? The price of ____ petrol is going up again.
#8439
A
the, the
B
/, the
C
the , /
D
/, /
During adolescence--- ______time of life between child and adult, teenagers want to be __________part of the group.
#8834
A
a, /
B
the, the
C
the, /
D
a, the