—He won a gold medal at this Winter Olympic Games in his 30s.—He ________ put a lot of hard work into it.

题型：单选题题类：常考题难易度：普通

广东省深圳市翠园中学2017-2018学年高二上学期英语期中考试试卷

—He won a gold medal at this Winter Olympic Games in his 30s.

—He ________ put a lot of hard work into it.

A、must B、should C、must have D、should have

举一反三

—Thanks. You it. I could manage it myself.

—No, I didn't phone you. It someone else.

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