题目内容
选择填空:
The Smiths ______ the Great Wall twice since they came to
China.
[ ]
A. had been to B. have been to
C. have gone to D. were to
答案：B
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选择填空:
The Smiths ______ the Great Wall twice since they came to
China.
[ ]
A. had been to B. have been to
C. have gone to D. were to
阅读快车系列答案