问题
___ around our school campus, the visiting teachers from other schools were led to our meeting room.
A:Having shown
B:To be shown
C:Having been shown
D:To show;
B:To be shown
C:Having been shown
D:To show;
正确答案是：
同类题型
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Can you tell me why you learn English so well–It’s very simple. you work, grades you will get.