______ proves that Jack is really enthusiastic and cautious. A．It happened that B．When it happened C...
2022-12-22 08:45:26 77次 2014届浙江省高二上学期期末考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
______ proves that Jack is really enthusiastic and
cautious.
A．It happened
that B．When it
happened C．What happened D．That has
happened
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