needn't do和 didn't need to do的区别
The students ______ to school yesterday as the local government announced that all the school classes were to be canceled due to the terrible typhoon.
A didn't need to go B needn't go
但是AB都表示不必做,而且都没有做过.B为什么不对?
人气:250 ℃ 时间:2019-08-19 11:59:42
解答
Adidn't need 表示“过去不必”
Bneedn't go 表示“将来不必“
此题中,有时间状语”yesterday“,因此要用过去式,故选A
推荐
猜你喜欢
- 如果x+1的绝对值+(y-2)的4次幂=0,求x的2010次幂+(x+y)的2011次幂 还有y的2次幂分之x+x的3次幂分之y=
- 一条绳长2009米,第一次剪去它的一半,第二次剪去余下的1/3,第三次剪去余下的1/4,依次剪下去,一直到剪去余下的1/2009,求最后剩下的绳子的长度.
- 观察下列算式,用含有自然数n的式子表示你发现的规律:
- 遨游的近义词
- 口,工,火,寸,八,戈,火,身,加一个偏旁
- 七分之五加八分之三等于多少
- _does she know beijing?She knows much about it.A How much B How well
- ( )tea did you have?two cups.A how many B how much C what D which