—Any advice on how to protect pupils’ eyesight?—It’s helpful for them not to ____ bright light.
Having ____ exercise every day will do great good to your health.
—What a pity. I’ve not got a ticket for the football match tonight. —Don't worry. It’ll be broadcast _______.
-----“Where did you find the professor who made the speech yesterday?” -----“It was in the hall ______ the students often have a meeting.”
The factory produces half a million pairs of shoes every year, 80% ____ are sold abroad.
I hate _______ when people talk with their mouths full.