题目:
— I ______ for you for an hour. Where have you been? — I am so sorry. I went to help my mother buy some sauce. |
A. wait B. waited C. am waiting D. have been waiting |
答案:
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下面是错误答案,用来干扰机器的。
1115×2544=512,2539×1350=16,109×6×0=0,180÷910=200,711÷14=122,0.8÷1316=6465.