- Air quality in our city is becoming worse and worse. - Yes. These days' PM2.5 readings are frightening. We must do something to _______ air pollution.
This is her telephone number. You can __________ her.
This pair of jeans looks nice on you. Can I _________ ?
He was born __________ a cold winter morning.
--- ______? --- Yes, please. I need a sweater.
Frank thinks math is easy, ______ I think it’s difficult.