1.The organization is in charge of the travel agencies.
The organization is responsible for managing the travel agencies.
2.Would you arrange a tour programme for a group of 20 tourists visiting China
Would you make arrangement for a group of tourists who visit China?
3.Building the wall took a long time .
It took a long time to build the wall.
4.The Great Wall at Badaling opens at 6:30 a.m.and closes at 7 p.m in summer.
The Great Wall opens for twelve and half hours from 6:30 a.m.to
7 p.m in summer.
5.Take a boat trip ,and you will be fascinated by the peaks along the river.
If you take a boat trip,you will be attracted by the peaks along the river.