when did you go to the school?A two days beforeB two days agoC for two days D after two dayswhen did you go to the zoo?

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when did you go to the school?A two days beforeB two days agoC for two days D after two dayswhen did you go to the zoo?
when did you go to the school?
A two days before
B two days ago
C for two days
D after two days
when did you go to the zoo?

when did you go to the school?A two days beforeB two days agoC for two days D after two dayswhen did you go to the zoo?
B
两天前,肯定是这个

B。
第一个的“before”用的不对,表示时间的以前,不能用“before”只能用“ago”。第三个,“for”用得不恰当;第四个是指两天之后,但是句子的时态是一般过去时,当然不能选。用排除法只剩B了。