Question

.新概念第一册，87-88.填空和选择题

新概念一册87-88.
The plane c____ after take-off
All the students are busy ____(get) ready for the party
The problem is too hard .I haven't ___ the answer.
Aworked onBworked for Cworked out Dworked off

Answer 1

新概念一册87-88.
The plane c(rashed 发出巨响,猛冲直撞 ) after take-off

All the students are busy (getting ) ready for the party
固定用法 be busy doing sth 忙于做某事。

The problem is too hard .I haven't ( C 算出） the answer.
Aworked onBworked for Cworked out Dworked off

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追问

_____ how do you know? The Austrelian you speak