—The girl reading books Lily. —It her, she is on the playground now.A.must be; mustn’t be B.may be; mustn’t be C.must be; can’t be
—_______ I borrow your English book? —Yes, of course you _______.
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 _______.