1. Who are they waiting for? It's time to start the meeting.
2. Why are you late for classes all the time? It is time to be a more serious and responsible person.
3. We have been walking for three hours, is it time for us to go to the cafe and have dinner?
4. She has been studying English for five years now and still makes many lexical and grammatical mistakes. Isn't it time for her to take extra lessons?
5. You are students of the faculty of foreign languages, and it is time for you to know the features of the functioning of the system of English times.
6. It seems to me that you should intervene and reconcile them.
7. Isn't it time for him to learn to swim?
Как то так))