Laura,we’vedecided---onatripthisafternoon.Willyoujoinus?Iamafridnot.Ihaveacomposition-----.A.togo;towriteB.togo;writingC.going;towriteD.going;writingAtschoolourteachersdoalltheycan-----uswithourlessons.A.helpB.helpin

Question

Laura,we’ve decided---on a trip this afternoon.Will you join us?I am afrid not.I have a composition-----.
A.to go;to write B.to go;writing C.going;to write D.going;writing
At school our teachers do all they can-----us with our lessons.
A.help B.helping.C.to help.D.helped
最好有句型

Answer 1

1.A.decide to do sth.是常用的形式,表示决定作某事.go on a trip可以表示去旅行.不定式作定语的时候要放在名词的后面,所以要说成I have a composition to write,类似的还有I have something to day.I have a lot of work to do.
2.C.按照正常的规则,情态动词CAN后面应该加动词原形,但是这里特殊在于这种结构里的can省略了后面的do,原来的形式应该为do all one can (do) to do,我们知道英语中两个动词是不能够以原形的形式紧连着的,所以这里应该填to do,因为前面省略了do.