She deserved to be punished.这句话中to 后面为什么加的是be而不是by?
这句英语为什么要加?She deserved to be punished.这句话中to 后面为什么加的是be而不是by
be afraid of 后面为什么加to do ,而不是doing?
seem to be为什么seem 的后面要加to
I have to be home by 10:00pm为什么是be home而不是go home
句子中为什么要加to be?----She turn out to be slim beauty now
为什么是be busy doing而不是be busy to do
为什么是must be kept而不是must to be kept
she's sure to be successful.to be 后为什么是接形容词?而不是用名词success.
We are less credulous than we used to be.这句话里面used后面为什么要加to
what does she want to be为什么要加be
be doomed to后面加的是名词还是动词?
为什么是remain to be seen 而不是remain to see