Mother often tells us never to put off ______ we can do today till tomorrow.
The doctor will see you again next week.________,you must rest as much as possible.
When you learn English,don’t try to learn too many words________.It’s best to review frequently.
He is wearing sunglasses to________his eyes from the strong sunlight.
It is________to go into the deep forest,for the snakes may make you________.
—Shall we eat out or stay in? —________.