Are you worried about the English test____grammar this afternoon?
用ON.这个考试的重点是针对语法.
We have often talked to each other on the telephone,but we have never met each other_________.
用before.
呵呵·选A的啊~~
test on 关于....的考试
The teacher tested the children on their homework.
老师就孩子们的家庭作业进行检查。
选A.
B test of grammar 语法的测试
before
第一道题选on ,the English test on grammar 关于语法的测试
第二道题填before,
I agree with maryswallow.
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