Tomorrow is Amm`s ____ birthday.
( ) 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. laughC. laughing
( ) Do you know ______ this word? A. what to spell B. how to spell C. to spell
( ) Be quiet! The babies ________. A. sleep B. are sleeping C. slept