—Pandas are very beautiful, _______ kind of shy. Do you think so? —Sure. And they are the treasure of our country.
#57317
A
and
B
so
C
but
D
or
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— Now I must go _______ I shall be late for the train.— Have a good trip. Goodbye.
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A
or
B
so
C
and
D
but
Many people believe we will face environmental disasters _________ we completely change the way we live.
#57124
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but
B
though
C
unless
D
until