道德行为

气道异物时呼吸困难的特点是（）

A.体力活动时加重，休息时缓解

B.平卧时加重，端坐位减轻

C.吸气时三凹征

D.呼气费力，呼气音延长

E.夜间入睡后发作

未漂白或漂白的其他合纤短纤混印

用所给词的适当形式填空

1. ______ is the boy over there? (whose)

2. ______names are Tom and Jerry.(they)

3. What are______ in that box?(that)

4. My shoes_______ under the bed.(be)

5. They are new here. I don’t know ______ .(they)

6. ______ toys are Lucy’s.(this)

7. This is my teacher. _____name is Wang.(he)

8. Tom is a friend of ______.(my)

9. His mother ______ a bike. It’s black.(have)

10. There ______ a pair of trousers on the bed.(be)

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