题目内容
从所给的四个选项中选择最佳答案
It was about 600 years ago ________ the first clock with a face and an hour hand was made.
[ ]
A.that B.when C.before D.until
答案:A
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题目内容
从所给的四个选项中选择最佳答案
It was about 600 years ago ________ the first clock with a face and an hour hand was made.
[ ]
A.that B.when C.before D.until