连词and的若干条用法说明
'1. 连接两个相同的比较级,表示“越来越……”。如:The car runsfaster and faster. 汽车开得越来越快。Our country is becomingmore and more beautiful. 我们...'
省to 的动词不定式
7.9 省to 的动词不定式 1) 情态动词 ( 除ought 外,ought to): 2) 使役动词 let, have, make: 3) 感官动词 see, watch, look at, notice...
带to的情态动词
21.13 带to 的情态动词 带to 的情态动词有四个:ought to, have to, used to, be to, 如加上have got to ,(=must), be able to,为六个。它们的疑问,否定形式应予以注意: Do they have to pay their bill before the end of the month? She did…...