. – ______Bob be the manager of our company?
– He ______ be, but I’m not sure.
A. Can; may B. Can; can’t C. May; must D. May; mustn’t
______ number of the students in their school is about two thousand, ______ of them are boys.
A. A; two thirds B. The; two third C. The; two thirds D. A; two third
The train station is about ______ bike ride from the post office.
A. twenty minutes B. twenty minute’s C. twenty-minutes D. twenty-minute
– I’ve got many books on Chinese food. You can borrow ______ if you like.
– No, I want to buy ______ in the bookstore.
A. it; one B. one; one C. one; it D. it; it
– Is there a bridge over the river?
– Yes, there is ______ bridge over it.
A. a 800-metres-long B. an 800-metres-long
C. a 800-metre-long D. an 800-metre-long
资源短缺威胁全球，节约资源刻不容缓。勤俭光荣，浪费可耻。假设你是李雷，请你给全班同学写一封倡议信，内容包括：
谈谈你曾经看到的校园内出现的资源浪费的现象，你当时的感受是什么？
针对校园出现的各种浪费现象，向同学们提出至少三条改进措施
号召大家节约资源，杜绝浪费。
注意：在书信中不能透露真实的姓名和学校，不能照抄原文。词数：80词左右。
参考词汇：resource(资源) electricity(电)
Dear classmates,
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Yours,
Li Lei
