be,beingAtthe beginning of class ,the noise of desks ____ co

be,being
Atthe beginning of class ,the noise of desks ____ could be heard outside the classroom.
答案是being opeded and closed,不可是 opened and closed
bitttt 1年前 已收到1个回答 举报

陈真ME 春芽

共回答了20个问题采纳率:90% 举报

hear 是感官动词,而且桌子本身不可能自己发出声音所以用被动语态.hear后跟动词ing,即being.

1年前

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