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本课程起止时间为:2020-04-19到2020-07-01
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Chapter 3 Grammar Grammar(语法测试题)
1、 问题: If I __ harder at school, I would be sitting in a comfortable office now.
选项:
A:worked
B:were to work
C:had worked
D:were working
答案: 【had worked 】 点我阅读全文