作业帮答案是cac,求详解1．Perhaps it will be a long time_____from abroad.A.when Tom comes back B.when Tom will come back C.before Tom comes back D.that Tom comes back 2.______that dress when I first saw you at the sation?A.were you wearing B.have you
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答案是cac,求详解1．Perhaps it will be a long time_____from abroad.A.when Tom comes back B.when Tom will come back C.before Tom comes back D.that Tom comes back 2.______that dress when I first saw you at the sation?A.were you wearing B.have you
答案是cac,求详解
1．Perhaps it will be a long time_____from abroad.
A.when Tom comes back
B.when Tom will come back
C.before Tom comes back
D.that Tom comes back
2.______that dress when I first saw you at the sation?
A.were you wearing B.have you worn
C.did you wear D.do you wear
3.Mr Wu______to work by bus every day.
A.has been traveling B.has traveled C.traveles D.is traveling
第一题选d不行吗？
答案是cac,求详解1．Perhaps it will be a long time_____from abroad.A.when Tom comes back B.when Tom will come back C.before Tom comes back D.that Tom comes back 2.______that dress when I first saw you at the sation?A.were you wearing B.have you
1C
时间状语从句,主将从现.而且根据意思,用before
2A
表示那个时候正在进行的状态,be wearing,穿着.
3c
every day 是表示经常的一个动作,故用一般现在时
如果第一题选D的话,别扭,另外,意思也出现偏差啊.
会成为：Tom回国会花很长时间,这个时间是指在归国途中的时间花的很长,即旅途很长,而非来之前的日子很长,意思就变了.
按说语法也没什么不对,但是很少这么理解的,作为应试题目,你得学会揣测出题人的意图
1.段时间用before
2.当我第一次看到你的时候，用过去进行时。
3.每天，经常发生的动作用一般现在时。
@@@涉及语态的。
1，when一般指的是某个时间点，而本局说的是‘他回国’还有一段时间，所以用before，可以表达。
2，when的那个时间点，所以用进行式。
3，every day，所以是一般现在时。
1、在Tom从国外回来之前，也许会是一段很长的时间。"之前"所以用before
2、陈述句的顺序是：You were wearing that dress when I first saw you at the station.改成疑问句就可以了。
3、有了every day，表示是经常发生的一个动作,自然该知道用一般现在时，直接就选了C...
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1、在Tom从国外回来之前，也许会是一段很长的时间。"之前"所以用before
2、陈述句的顺序是：You were wearing that dress when I first saw you at the station.改成疑问句就可以了。
3、有了every day，表示是经常发生的一个动作,自然该知道用一般现在时，直接就选了C
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