If I ____ you tomorrow, I will give you the receipt.
A. seeB. 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
Be quiet! The babies ________.
A. sleepB. are sleepingC. slept