题目
When I walked past the park, I saw some old people _________ Chinese Taiji.
A.do B.doing C.did D.are doing
A.do B.doing C.did D.are doing
A.
do
B.
doing
C.
did
D.
are doing
知识点:专题08 单项选择专练100题(二)(人教版)章节:专题08 单项选择专练100题(二)(人教版)
答案与解析
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