--- Look, this pair of shoes            beautiful, right?--- Yes. But they don’t fit me            .

--- How _____ hours do you sleep a day?--- Well, about eight hours. But how _____ sleep do we students really need?

I, who _____ your good friend, will share your joys and sorrow.

Not only his parents but also his grandfather ________ to a lot of places of interest in our country since they came here.

Don't miss the meeting. The questions to be discussed at it _____ of great importance.