1.It was raining from 7 to 9 last night.可不可以这样说It rained fro

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1.It was raining from 7 to 9 last night.可不可以这样说It rained from 7 to 9 last night.为什么
2.A large number of birds have turned to these lakes.可不可以说 A large number of birds have turned back to these lakes.为什么
3.She lay her legs on the chair,took a newspaper and began to read.这里为什么要用lay 而不用laid呢?
4.What__you __this time tomorrow?要选哪一个,为什么
A.are ,going to doB.will ,be doing

1.It was raining from 7 to 9 last night.可不可以这样说It rained from 7 to 9 last night.为什么
不可以,前面的句子是表示7-9点一直下雨,后面的句子指7-9点下过雨,但是不一定一直下.
2.A large number of birds have turned to these lakes.可不可以说 A large number of birds have turned back to these lakes.为什么
turn 本身就是回转的意思,已经包含back的意思了,所以不可以重复用back
3.She lay her legs on the chair,took a newspaper and began to read.这里为什么要用lay 而不用laid呢?
lay 应该是lie的过去式,“放置”的意思,是及物动词.而laid的原型是lay,也是“摆放”的意思,是不及物动词.这个句子的是“她”把腿放在桌子上.是某人来执行这个摆放的动作,所以用及物动词.
4.What__you __this time tomorrow?要选哪一个,为什么
A.are ,going to doB.will ,be doing
选后面的.是将来进行时.因为this time tomorrow,是明天的这时,是确切的时间.表示明天的此时正在下雨

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