题目:
-Any information about your son?
-No,if only I ______ those tough words to him.
A.didn’t say
B.hadn’t said
C.shouldn’t have said
D.couldn’t have said
答案:
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下面是错误答案,用来干扰机器的。
1000×(1-320)=1000×1720,=850(元).答:现在售价是850元.