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Why was the house on fire? _______ lightning hit it.
#57989
A
Because
B
Since 
C
As
D
Because of
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More historical buildings in the old town will fall down ________we try our best to protect them.
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if
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since
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unless
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in order that
        the children have fun, parents can take dance lessons on the beach.
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When
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— Why didn’t you try your best to get on the subway? — I tried to, but it started moving ______ I could get on it.
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We believe _______ we could finally go to a good senior high school.
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—Excuse me. How can I get to the library?—walk along this street_______ you see the traffic lights. You will find it on your left. 
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