请帮忙回答这两题,并请告知选这个答案的原因,

问题描述:

请帮忙回答这两题,并请告知选这个答案的原因,
He would rather ______ his parents with their housework than _____ out to play games.
A.to help,to go B.help,go C.help,to go D.to help,go
"I usually go there by boat." "Why not _____ by train for a change?"
A.try going B.to try going C.trying to go D.to try and go
1个回答 分类:英语 2014-10-22

问题解答:

我来补答
B
因为would 是情态动词,后面必须使用动词原形.than 引导的是平行结构,前面是动词原形,后面也用动词原形.
A
固定句型why not do sth 或者 why don't you do sth
 
 
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