The Smiths China for ten years , so they have been used to the life here.A. have been to

发布时间：2020-08-23 05:26:45

The Smiths      China for ten years , so they have been used to the life here.
A. have been to   B. have gone to    C. have been in

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解析：句意：史密斯一家已经来中国十年了，因此他们已经习惯了这儿的生活。结合语境可知前文描述的是已经持续了十年的状态，选项AB表示瞬间动作，故选C。
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