问题
选择题
Look ! The boys _ on the playground.[ ]
A. is playing
B. are playing
C. play
D. played
答案
答案：B
搜题请搜索小程序“爱下问搜题”
Look ! The boys _ on the playground.[ ]
A. is playing
B. are playing
C. play
D. played
答案：B