He's already left for Beijing.改为否定句He_____ _____for Beijing ____.它们以什么为食?What do they ____ ____?
He's already left for Beijing.改为否定句He_____ _____for Beijing ____.
它们以什么为食?What do they ____ ____?
He's already left for Beijing.改为否定句
He【hasn't left】for Beijing 【yet】.
它们以什么为食？ What do they 【live on】?
He's already left for Beijing.改为否定句
He__hasn't___ __left___for Beijing _yet___.
它们以什么为食？
What do they _live/feed___ _on___?
live on sth,和 feed on sth 都表示“以...为食”
He hasn't leave for beijing.
What do they live on?
应该填写
hasn't left yet
feed on
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He hasn't left for Beijing yet.
He hasn't left for Beijing yet.
what do they feed on ?
He hasn't left for Beijing yet.
He hasn't yet left for Beijing .
肯定句用already,否定句用yet
What do they live on?
live on sth以某物为食
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否定为：He hasn't left for Beijing yet.（否定句中的“已经”用yet）
它们以什么为食？ What do they live on?