the little girl was heard _______(laugh) happily in the room a moment ago.
the little girl was heard _______(laugh) happily in the room a moment ago.
英語人氣:516 ℃時間:2019-10-14 02:41:27
優(yōu)質(zhì)解答
因?yàn)楹竺娴腶 moment ago 意思是剛才.所以事情已經(jīng)發(fā)生過去了.動作完成了,不再表示正在笑了,所以用原形laugh.原型表示動作的全過程,現(xiàn)在分詞表示動作正在進(jìn)行.
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