问题
选择题
He often ______ ping-pong with his friends. Now they ______ ping-pong at school.[ ]
A. play; are playing
B. plays; play
C. plays; are playing
D. plays; is playing
答案
答案：C
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He often ______ ping-pong with his friends. Now they ______ ping-pong at school.[ ]
A. play; are playing
B. plays; play
C. plays; are playing
D. plays; is playing
答案：C