【題目】—How long has your grandma ________?

—About three months.

A.fallen ill B.been ill C.fall ill D.be ill

【答案】B

【解析】句意為:——你奶奶生病多長時(shí)間了?——大概三個(gè)月了。fall ill強(qiáng)調(diào)突然病倒,是短暫性動詞短語,不能與一段時(shí)間狀語連用;be ill表示生病的狀態(tài),是延續(xù)性動詞短語,可與一段時(shí)間狀語連用。結(jié) 合句意可知應(yīng)選B。

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