用所给词的适当形式填空。

1. This dog is very _____(love) and I like it very much.

2. Who does _____(good) in English, John or Mike?

3. I hope to spend two hours _____(play) softball with him.

4. Students can have______ (drive) lessons in American schools .

5. At the_____ (begin) of the trip, most of us felt bored.

6. My mother always cooks _____(taste) meals on Sunday.

7. It rained heavily yesterday, so my father          (drive) me to school.

8. The girls finished their work all by_____(them).

9. Yesterday we had a good time _____(chat)with each other.

10. I plan     _    ( go ) to Beijing for summer holiday next year .

一艘船向正东方向航行，上午8：50在A处测得一灯塔在北偏东60°方向距离72海里处。上午10：10到达B处，看到灯塔在船的正北方向，求这艘船的航行速度(精确到0.1海里/时)。