Kate was at home. She was _________ her brother.
A. looking after B. looking at C. looking
()—Is the cat ________ the door?
—No, it isn’t. It’s ________.
| A．behind; under | B．in; on |
| C．under; atthe desk. | D．over; behind |
() If I ________ you tomorrow, I will give you the receipt.
A. see B. will seeC. am seeing
( )—What day is today?
—It’s ________.
A. Monday B. a fine day C. September 1st
( ) The students couldn’t help ________ when they heard the joke.
A. to laugh B. laugh C. laughing
() Do you know ________ this word?
A. what to spell
B. how to spell
C. to spell