—Excuse me, Maria. Can I use your bike?—Sure. Here you are. But you must return it _____ time.
Today’s young people can’t live without smart phones. They keep their hands on the phones wherever they go, even while they ________ meals.
David lives on the ________ floor. It is too high, so he has to take a lift every day.
-----__________ can you finish the English examination?----In about one and a half hours.
----Where will Alice sit?----The seat next to Kenny’s is _________.
If you want to buy an expensive camera, we have several models for you ________.