问题
﹣How often do you have a school trip this term﹣_____．Since several accidents happened to some schools，all the school outdoor activities have been asked to stop．
A:have gone to
B:have been to
C:have been in
D:have come to;
B:have been to
C:have been in
D:have come to;
正确答案是：
同类题型
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