He comes to see us ____ the morning ___ October 31st every year.
—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.
Please be quick, or we will have no time ____ have lunch.
—Mom, my classmates invited me ____ a field trip. May I go with them? —OK.