作业帮 > 英语 > 作业

You ()leave,do you?But they must leave now.A.needn't to B.do

来源:学生作业帮 编辑:百度作业网作业帮 分类:英语作业 时间:2024/06/25 10:58:02
You ()leave,do you?But they must leave now.A.needn't to B.don't need to C.both A and B.
为什么选择B
You ()leave,do you?But they must leave now.A.needn't to B.do
1.need 既可以是实义动词也可以是情态动词,都表示“需要”
2.need 作为实义动词 need to do sth
3.need作为情态动词时,后面+动词原形,因此把A 排除,C也不行了
欢迎追问~