the man is wearing sports clothes.he must - for exercise.A.running B.be running C.run D.to run

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the man is wearing sports clothes.he must - for exercise.A.running B.be running C.run D.to run
the man is wearing sports clothes.he must - for exercise.
A.running B.be running C.run D.to run

the man is wearing sports clothes.he must - for exercise.A.running B.be running C.run D.to run
B.be running
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