—— I'm sorry I can't help you. —— ________.A. Not at all. B. You are welcome. C. It doesn't matter.
( )—— What day is today —— It's ______. A. MondayB. a fine dayC. 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 spellB. how to spellC. to spell
( ) Be quiet! The babies ________. A. sleepB. are sleepingC. slept
( ) He asked me _____ I would like a cup of tea. A. that B. what C. If