In such dry weather,the flower will have to be water if they________.

题目

In such dry weather,the flower will have to be water if they________.
A.have survived B.are to survive
C.would survive D.will survive

答案

选B be to表示目的,将要做某事以达到某目的
如此干旱的天气里,花儿想要存活必须补充水分.A用的过去完成时,显然不对 C和D都是将来时,但这题是个条件句,表示目的的,因此只能选B