—Putting on a happy face not only helps us make friends but also makes us feel better. —______.
—I’d like to book a single room in your hotel.—OK. They’re US$100 each, but a room with a sea view will cost _____ $10.
—What should I wear for the party, darling?—_______.We're already late!
— Have you seen ____ pencil? I left it here this morning.—Is it _____black one? I think I saw it somewhere
The reading room needs _____, but it’ll have to wait until Saturday or Sunday.
The environment will be further polluted unless some measures _____.