根据句意和词首字母（或汉语）提示完成单词。
l. The plane t off from Tokyo at 20:00 last night.
2. Mr Green c his hair in the barber shop this morning.
3. Mrs Black (买)her daughter a nice skirt yesterday.
4. Mr Jackson is a (奇怪的)man. He always wears a hat all the year round.
5. To my (吃惊)，the alien was shopping.
6. After I reached home last night, my father s (说)to me," Have you finished your homework?"
7. The boy was walking down the street when the UFO l .
8. An a was visiting the museum when a girl called the TV station.
的重心的坐标为______．