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【单选题】

The situation is getting worse.We must __________ the trouble _____________.

A.
keep; spreading
B.
pr; spreading
C.
stop; to spread
D.
protect; to spread
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参考答案:
参考解析:
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举一反三

【单选题】Mr.Wang _____ table tennis well, though he suffers from a waist pain and _____ it for a long time.

A.
played; has not played
B.
plays; had not played
C.
plays; did not play
D.
plays; has not played