下列说法中，正确的是（   ）
①0是绝对值最小的有理数；②相反数大于本身的数是负数；③数轴上原点两侧的数互为相反数；④两个数大小比较，绝对值大的反而小.

一物体从离地某高处自由下落，空气阻力不计，经3s时间落到地面，则落地时速度大小为____m/s，下落前离地高为____m．（g取10m/s2）

A: Hey, Peter. ____ 
B: I argued with my best friend. ____ 
A: Well, you could write him a letter.
B: I don't think so. I don't like writing letters.
A: ____ .
B: No, I don't want to talk about it on the phone.
A: Well, you should say you're sorry.
B: Yes, I know I should, but it's not easy.
A: Hey, I know. You could give him ____  a ball game.
A: Well, that's a good idea, but ____ .

阅读短文，选择最佳答案。

    Hello, I am John. Look, this is a picture 1 my room. I have a nice bed in the middle of my room. There is a big table 2 the closet and the bed. Many clothes are3 the closet. A white air-conditioner is 4 the wall beside the window. There is a computer on the table. I often write e-mails with it.

   Do you like my room? What's your room 5? Can you tell me, please?