帮我看看这几题怎么做，最好说明原因,3ks

1.D
had better not do

2.B
lest后面虚拟语气用(should)+动词原型，表示消极

3.A
在表达否定或者疑问意义的句子中，dare为情态动词，用dare+动词原型

D1,You_________to bed early if you really want to see the football match on TV.
A.may not as well as go B.had not better C.might not as well go D.had better not go
had better not to do是最好不要做某事
B2,I’ll be kind to her lest she_____to leave me.
A.decides B.decide C.will decide D.decided
lest后带虚拟语气,动词用原形

C3,It was so dark outside that nobody ___out
A.dare go B.dared go C.dare to go D.dares to go
dare to敢去做某事,又因为它是情态动词,没有时态

1,D
had better ont do sth"最好别做某事"
2,A
条件状语从句的条件部分用现在时
3,B
这里dare是普通动词的用法,dare do sth.

1.d
had better not do固定词组，你最好不要去做

2.b
lest后面要用虚拟，表示以防万一
应该是lest she (should) decide to leave me ,should 省略后就变成了原形

3.b
dare作情态动词，dare do sth只用于否定，疑问，条件句中
dare作实意动词，dare (to) do sth ,to可以省略
题中应该用过去