问题

(2013·江西六所重点高中一模)We ________ take clean drinking water for granted. One day we may run out of it.

A:needn't
B:can't
C:won't
D:shouldn't

正确答案是：

同类题型

Much to my surprise, it _____ raining by the time I wanted to go out

Ann is in hospital. ——Oh, really I_______ know. I_______ go and visit her.

e a call to my parents yesterday. To my disappointment, ____of them an-swered it.

Excuse me. Could you tell me how I can get to Foster City Library— Sorry, I don’t know. This is my time here.

I was born in New Orleans, Louisiana, a city name will create a picture of beautiful trees and green grass in our mind．