Though iPhone 4 is such a hit product, I won’t buy one unless its after service ______. A. was impro...
2023-02-02 02:16:30 137次 2013届福建省福州八县（市高一下学期期中联考英语题 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Though iPhone 4 is such a hit
product, I won’t buy one unless its after
service ______.
A.
was improved B. gets improved C. is
improving D. had got improved
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