- Look! It’s raining again-- Why it rain on Sundays? We are always staying inside! What

问题补充：

- Look! It’s raining again.

-- Why it rain on Sundays? We are always staying inside! What a nuisance!.

A. need

B. can

C. must

D. should

答案：

A. need

B. can

(答案→)C. must

D. should

解析：

这题考查情态动词的用法：need需要，B. can能，C. must必须，偏要，D. should应该，句意是：--看，又下雨了。--为什么偏要星期天下雨啊？选C。