— Do you know second-hand smoke?— To protect ...

---Do you know 　　　　　　　　　　　　　　　 second-hand smoke?

---To protect our health and memory.

A. how we should prevent　　　　　　 B. why should we prevent

C. why we should prevent　　　　　　 D. whether we should prevent

九年级英语单项填空中等难度题查看答案及解析

— Do you know　　　　　　 second-hand smoke?

— To protect our health and memory.

A. how we should prevent

B. how should we prevent

C. why we should prevent

D. why should we prevent

九年级英语单项填空中等难度题查看答案及解析

---Do you know 　　　　　 second-hand smoke?

---To protect our health and memory.

A. how we should prevent　　　　　　 B. why should we prevent

C. why we should prevent　　　　　　 D. whether we should prevent

九年级英语单项填空简单题查看答案及解析

—Do you know ______ second-hand smoke?

—To protect our health.

A. how we should prevent B. where should we prevent

C. why we should prevent D. where we should prevent

九年级英语单选题中等难度题查看答案及解析

─Do you know_____second-hand smoke?　 ─To protect our health and memory.

A. how we should prevent　　 B. how we should prevent

C. why we should prevent　　 D. whether we should prevent

九年级英语单选题中等难度题查看答案及解析

-Do you know_______ second-hand smoke?

-To protect our health and memory.

A. how we should prevent　　 B. why should we prevent

C. why we should prevent　　 D. how should we prevent

九年级英语单项填空简单题查看答案及解析

─Do you know_____second-hand smoke?　 ─To protect our health and memory.

A. how we should prevent　　　　 B. how we should prevent

C. why we should prevent　　　　 D. whether we should prevent

九年级英语单项填空简单题查看答案及解析

----Do you know_____ second-hand smoke?　 ----To prevent our health and memory.

A. how we should prevent　　　　　　 B. how we should prevent

C. why we should prevent　　　　　　 D. whether we should prevent

九年级英语单项填空中等难度题查看答案及解析

─Do you know 　　　　　 second-hand smoke?

─To prevent our health and memory.

A.how we should prevent　　　　

B. where should we prevent

C.why we should prevent　　　　

D. whether we should prevent

九年级英语单项填空中等难度题查看答案及解析

-Do you know____ second - hand smoke?

一To protect our health and memory.

A how we should prevent　　 B. why should we prevent

C. why we should prevent　　 D. whether we should prevent

九年级英语单项填空中等难度题查看答案及解析