You be tired after playing sports for a long time without a rest.A. needB. mustC. can D. s

问题补充：

You be tired after playing sports for a long time without a rest.

A. need

B. must

C. can

D. should

答案：

A. need

(答案→)B. must

C. can

D. should

解析：句意：没休息运动了很长时间后，你一定很累了。根据句意分析运动很长时间后可推测一定很累，故选B。