27,I hear that you and frsancis will spend your vacation is Nepal next spring.Yes,we are planning___

题目

27,I hear that you and frsancis will spend your vacation is Nepal next spring.Yes,we are planning_______.A,to B,to be C,it D,to do it.28,can you ride a house?No,I never had the chance______.A,for learning to B,for learning now C,to learn it D,to learn now 29,these examples,once _____ to his article.Will make it sound responsible and acceptible.A,add B,to add C,adding D,added

答案

第一个可以填to do it,或者on doing it,或是on it.计划什么就是这么说.
第二个,前面是ride a horse吧,填空应该是to learn it.have chance 后面是正常不定式.
第三个,逗号是两个吧,这样once就是插入语,这里的动词的实际主语是examples,所以是被动的,用added.