英译汉：
1、How about keeping this secret between you and me?
2、You must have a good plan before you travel to Tibet.
3、Is anybody able to climb up this tall tree?
4、I won’t go to bed until I finish my homework.
5、We’ll go out for picnic unless it rains.
6、It is very convenient to go to Huangshi from Wuhan by car.
7、Parents cancel their children’s classes because it is foggy and dusty.