题目内容：

Since you ______(visit) this exhibition,over one thousand people ________(be) there.
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优质解答

Since you visited this exhibition,over one thousand people have been there.
你去了那个展览之后,有超过1000人去了那里
since +时间：自从一个时间点,填动词的过去式
过去某个时间点后,到现在为止又有超过1000人去了,填完成时