A young man ___ John _____ school recently.
Do you prefer _______?
—Mr. Hu, can you tell us how to learn swimming well?—Sure. But remember we can learn nothing well _______ hard work.
You _______ wash your hands before meals. It is good for your health.
It’s hot here. Please keep the windows _______.
Sally sings pretty _______ and she is also _______ at dancing.