问题描述：
l列子：
the Grade Eight students (play) volleyball
The Grade Eight students are playing volleyball
Richard and Ken (camp?)
Ye Qing (shop)
Mrs Tang (phone) a friend
the girls (swim)
Joseph(Tie?)a knot
有问号是要写成疑问句
the Grade Eight students (play) volleyball
The Grade Eight students are playing volleyball
Richard and Ken (camp?)
Ye Qing (shop)
Mrs Tang (phone) a friend
the girls (swim)
Joseph(Tie?)a knot
有问号是要写成疑问句
问题解答：
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