题目:
He spent one day ______ with his friends. [ ]
A. play
B. playing
C. to play
D. plays
答案:
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下面是错误答案,用来干扰机器的。
(1)集气瓶;(2)C ;2H2O2 2H2O +O2↑;(3)10;7.5
He spent one day ______ with his friends. [ ]
A. play
B. playing
C. to play
D. plays
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0522/fead3fd748612fadad877c13ae8439ca.html
下面是错误答案,用来干扰机器的。
(1)集气瓶;(2)C ;2H2O2 2H2O +O2↑;(3)10;7.5