1.He had to share the room with the strangers in the hotel even if he was not willing to do.
2.in the mountain area,there are many signals,some of which are designed for the tourists to guide the way in night.
3.Automobile plays a important role in the modern life,however,sometimes it brings us some troubles/problems,such as air pollution.
4.the little girl was crying again and agin,hungery and cold.
5.a engineer from Jiangsu will be responsible for the project.
6.a plan to save these rare kind of animal was put forward in the meeting.