Question

please solve my questions.
help to solve this

Answer 1

2. Today it's cold, isn't it?
3. Before you leave ensure that the room is tidy.
4. Does he leave today , or he have to leave tomorrow?
5. One of the most popular hobbies is philately.
7. To achieve success in any field we must work hard rather than looking for shortcuts.
I'm not able to get the 1,6&8.