She had to take care of the dog at home,____?a.hasn't she b.did s_英语解答

She had to take care of the dog at home,____?a.hasn't she b.did she c.has she d.didn`t she
The poor man need some help ,___?
a.does he b.doesn`t he c.need he d.needn`t he

人气：469 ℃　时间：2019-08-24 06:42:46

解答

1,D.2.D.
原因：1题中,had to 是半情态动词,需借助助动词did 变成反义疑问句.前肯后否.
2题中,注意到need没有用第三人称单数,所以need在此自己就是一个助动词,直接在need上进行变形.前肯后否.