求大神解答高中英语语法China's lunar probe programme has no purpose other than scientific achievement and it is not__ with any other country.A.competing B.to compete为什么是选A不选B的?不可以选不定式表示目的吗?“Will somebody go and get Dr.White?"  "He's already been___"A.asked for   B.sent for  C.called for        D.looked for答案是选B,那其他三项有什么语法错误呢?

问题描述:

求大神解答高中英语语法

China's lunar probe programme has no purpose other than scientific achievement and it is not__ with any other country.

A.competing B.to compete

为什么是选A不选B的?不可以选不定式表示目的吗?

“Will somebody go and get Dr.White?"  "He's already been___"

A.asked for   B.sent for  C.called for        D.looked for

答案是选B,那其他三项有什么语法错误呢?