- 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
网友回答
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。