--Are you satisfied with the air today? --Not at all, it’s so foggy that I often get a cough. I think we all need much ________air to breathe.
My parents are always strict ____ me.
I think he is a student, ____?
—I’m going to Hangzhou for a holiday this weekend. —____ you are there, can you buy me some green tea?
The old man lives ____ but he doesn’t feel ____.
Li Lei isn’t ____ Liu Ming.