【英语】初二选择题[求分析]

【英语】初二选择题[求分析]
1.---________ I ________finish my homework now,mum?
---Yes,you ________.
A.Ought;to;ought
B.Ought;to;do
C.Should;/;ought to
2.Oh,you're bleeding.You ________ go to hospital at once.
A.should better
B.had better
C.has better
D.may
3.Granny,it ________ for you to walk a while every day.
A.might be better
B.can be better
C.ought to be better
D.could be better
求答案分析[理由].要精简
第3题求分析囧求分析..
好吧3.
OTZ