高分悬赏：英语高手请进：关于情态动词may和shall的问题.
问题描述：
高分悬赏：英语高手请进：关于情态动词may和shall的问题.
1. —— We need a person badly to think up such an idea.
—— ________ the new comer have a try?
A. ShallB. MayC. Should D. Need
注意：给出答案,并给出选择该项的原因,以及不选择其他选项的原因.
2. They must have finished the work by the end of last month, ______?
A. mustn't they B. haven't they C. hadn't they D. didn't they
本题要求同上题相同.
还请各位高手不吝赐教,江湖救急,在线等,在下感激不尽.
答
1.A显然可以排除CD,然后之所以不选B,是因为may表建议的时候只能用于第一人称即I/we而shall却可以用于第一、三人称.如：Shall I get you some tea?我给你点茶好吗?Shall the boy wait outside?让那男孩在外面等吗?Wha...