新概念英语1册的一个练习题用when 和 while 连接以下句子.1.My friend broke his leg.+ He was playing football.2.We were driving into the city.+ We had an accident.3.She was leaving the house.+ The telephone rang.

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新概念英语1册的一个练习题用when 和 while 连接以下句子.1.My friend broke his leg.+ He was playing football.2.We were driving into the city.+ We had an accident.3.She was leaving the house.+ The telephone rang.

新概念英语1册的一个练习题用when 和 while 连接以下句子.1.My friend broke his leg.+ He was playing football.2.We were driving into the city.+ We had an accident.3.She was leaving the house.+ The telephone rang.
新概念英语1册的一个练习题
用when 和 while 连接以下句子.1.My friend broke his leg.+ He was playing football.2.We were driving into the city.+ We had an accident.3.She was leaving the house.+ The telephone rang.

新概念英语1册的一个练习题用when 和 while 连接以下句子.1.My friend broke his leg.+ He was playing football.2.We were driving into the city.+ We had an accident.3.She was leaving the house.+ The telephone rang.
1.when/while
2.when
3.when
后两句只能用when做并列连词,意思是“就在那时”,引导并列句,而不是引导时间状语从句.其实前句一般是过去进行时,而后句则为一般过去时.