_____ school days I usually have breakfast at 7: 00. ( )

A．In

B．On

C．At

—Where is the cat?  ( )
—It’s ______ the box.

A．in

B．on

C．under

句子改错
1. Are you at the kitchen?
____________________________________________________________
2. Candies is bad for your teeth.
____________________________________________________________
3. Vegetables can keep your body health.
____________________________________________________________
4. Bring to me a cup of tea, please.
____________________________________________________________
5. You’re eat candy again.
____________________________________________________________

How about _______(walk) on the beach?

The modern Olympic games are different____ the ancient ones.(   )

A．of

B．from

C．at