问题
选择题
Ping Pong is popular among China, _____ both young and old can _____. [ ]
A. about it; take part in
B. in it; take part
C. in which; take part in
D. in which; take part
答案
答案：D
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Ping Pong is popular among China, _____ both young and old can _____. [ ]
A. about it; take part in
B. in it; take part
C. in which; take part in
D. in which; take part
答案：D