题目内容

He suddenly returned ______ a rainy day.

A. during
B. in
C. at
D. on

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Red flags stand out brightly ______the blue sky.

A. against
B. under
C. by
D. above

What one thinks and feels is mainly _____ traditions,habits and education.

A. because of
B. due to
C. since
D. because

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她好像迷路了。

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