题目内容
-- behind the door?
--No, they aren't.
- A.Where are
- B.What's
- C.Are those keys
- D.Is the key
根据答语可知问句是一般疑问句，又因答语中的代词是they，可知问句中的名词是复数形式，故选C。
举一反三同步巧讲精练系列答案
口算与应用题卡系列答案No family wants its home to catch fire, but it's good to plan for a fire just in case （以防万一）. Talk with your family about 36 to do if a fire starts. 37 should have a plan for getting out of the house. Be sure to choose a safe place to 38 after everyone gets away from the fire.
What should you do 39 there is a fire? First, 40 people know about the fire. Yell （叫喊） the word "fire". Knock on the walls with your hands.
Then 41 the door of your room. If the door is warm, don't open it. If it's cool, open it just enough to 42 . If you see fire or much smoke, close the door fast.
If you can't see fire or smoke, you can go out of the door. Shut the 43 behind you. That will slow down the fire. Now find a 44 out. Stay away from the smoke. The air is the 45 near the floor. So it 46 be the safest to crawl（爬）when you leave the house.
If you can't leave your room, close your door. Cover the crack （缝隙） under the door
47 clothing. Then open the window or 48 the glass with a chair. Crawl out, of the window 49 .If the window is high off the ground, 50 jump! Wave a towel out of the window, and yell for help. When you get out of the house, run to the place where you and your family chose to meet.
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