I often see Tom on the playground. When I passed the playground yesterday, I saw him .
A. play; playing B. to play; play C. playing; to play C. playing; play
相关试题
You should keep tire window________because the room is too hot．
A．open
B．opening
C．opened
Mr.Wang often encourages us________close to nature and enjoy its beauties．
A．get
B．getting
C．to get
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