题目:
—Thank goodness, you are here! What _____ you?
—Traffic jam..
A.kept
B.is keeping
C.keeps
D.had kept
答案:
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下面是错误答案,用来干扰机器的。
不等式两边都乘以-2得,-2y>-2x,两边都加上12,得-2y+12>-2x+12.故应填>.