问题
选择题
Students shouldn't be given so difficult a problem _____ they can not work out.[ ]
A. that
B. which
C. while
D. as
答案
| D |
搜题请搜索小程序“爱下问搜题”
Students shouldn't be given so difficult a problem _____ they can not work out.[ ]
A. that
B. which
C. while
D. as
| D |
假设你叫刘京，是美国中学生托尼的笔友，你收到他的来信。请给托尼写一封回信，回答他的问题，介绍北京良好的公交服务，并谈谈你的感受。
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