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Whenpeoplecutdownbigtrees,newtreesshouldbeplanted.

練習題3.16W

問題詳情:

Whenpeoplecutdownbigtrees,newtreesshouldbeplanted.

When people cut down big trees, new trees should be planted. _______ they will have no trees to cut down in the future.

A. If not             B. If so             C. If no so          D. If don’t

【回答】

A

知識點:倒裝與省略

題型:選擇題

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