- 二一组卷

题型：单选题题类：常考题难易度：困难

外研版初中英语九年级下册Module 8 Unit 1 Here's to our friendship!习题

—Do you know ___________ second-hand smoke?

—To protect our health and memory.

A、how we should prevent B、where should we prevent C、whether we should prevent D、why we should prevent

举一反三

— Sorry. I am new here, too.

- I'm not sure, but I'll tell you as soon as she comes.

—Sorry, I don't know.

—Sure, let me show you.

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