1.All animals need air and ___ .A.so need plants B.so do plants怎么判断need在这儿是实意动词还是情态动词呀?选哪一个呢?另外一个为什么不对呢?2.I suppose she __ be about fifty when she died.A.would B.may C.should3.If you undertake this project you are bound to __ many difficulties.A.encounter B.face with选什么?
问题描述：
1.All animals need air and ___ .
A.so need plants B.so do plants
怎么判断need在这儿是实意动词还是情态动词呀?选哪一个呢?另外一个为什么不对呢?
2.I suppose she __ be about fifty when she died.A.would B.may C.should
3.If you undertake this project you are bound to __ many difficulties.
A.encounter B.face with
选什么?
答