( ) Is the cat ________ the door? No, it isn’t. It’s ________ the desk.
| A．behind, under | B．in, on | C．under, at | D．over, behind |
( ) If I ____ you tomorrow, I will give you the receipt.
A. see B. will see C. 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 laughB. laugh C. laughing
( ) Do you know ______ this word?
A. what to spell B. how to spell C. to spell