—I’m sorry I can’t help you.—________.A.Not at all. B.You are welcome. C.It doesn’t matter.
( ) 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
( ) Be quiet! The babies ________. A. sleep B. are sleeping C. slept