______black—headed gulls(红嘴鸥) come to Kunming to spend their winter every year.
My grandfather was badly ill, so we asked him _________ smoking.
--- _________ does your cousin go to the gym? --- Twice a week.
You _________ drive on when the traffic light is red.
Look! So many passengers________ with their phones on the underground.
A human brain can do many things, such as creating new ideas, ________ than a computer.