be about to do 句式中 about这个词在句中做什么成分?
英语翻译用be about to do sth when 的句式
be about to do
be about to do 中about的词性
be about to do 中about是什么词性?
be to do be about to do 有什么区别
It's nothing to be suprised about中 to做什么成分,去掉不行吗?
be going to do、be about to do、be to do,这三者有什么区别?
形容词加介词结构,具体如be happy about sth.,这里about引导的介词短语在句中做什么成分?
want sb to do sth在这个句式中,sth作什么成分?
be about to do和be about doing 区别
is about to do和will be有什么区别?
be about to do和mean to do和intend to do有什么区别