题目内容
3．-May I go out？-Ok．But you _______ finish your homework first．（ ）
| A． | can | B． | may | C． | must | D． | will |
分析 -我可以出去吗？-可以．但是你必须先完成作业．
解答 正确答案：C．A是能、会，B是也许，C是必须，D是会、将要．根据题干可知说话人允许其出去玩，但是他必须先写完作业，故选择C．
点评 本题考查情态动词辨析，基础题，掌握常见情态动词的用法，再根据题干进行选择．
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