The man is wearing sports clothes. He must______for exercise. A .running B.be running
题目
The man is wearing sports clothes. He must______for exercise. A .running B.be running
The man is wearing sports clothes. He must______for exercise.
A. running B. be running C. run D. to run
答案
C.run must是情态动词,情态动词后用原形
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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