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The students took the trouble _____ all the ______ leaves away.
A．to clean, fallenB．to clean, fallingC．cleaning, fallingD．cleaning, fallen
A.

試題分析：學(xué)生們不怕困難盡力掃除落葉。take the trouble to do sth. 不怕麻煩或困難盡力做某事。falling leaves: 正在飄落的葉子。現(xiàn)在分詞表示正在進(jìn)行的動(dòng)作。fallen leaves: 落在地上的葉子。過(guò)去分詞表示已經(jīng)完成的動(dòng)作。故答案為A.
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