The man is wearing sports clothes. He must______for exercise. A .running B.be runningThe man is wearing sports clothes. He must______for exercise.A. running B. be running C. run D. to run
问题描述：
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
B.他可能要去运动
答
C.run must是情态动词,情态动词后用原形