Charlie Chaplin found __________ difficult to entertain the audience at first.

--- He was nearly drowned once.--- When was _____?--- _____was in 1998 when he was in middle school.

．—Do you think_____     worthwhile to go all the way to Los Angles to buy that computer?—Well ,I’m going to visit some relatives, too.  

When you are speaking on the phone, you must convey the impression that this is an important conversation to you, ______ you are treating with great significance. 

--- I can’t find my raincoat. I hung it behind the door.--- I saw Peter going away with _____, but I’m not sure whether it’s  yours.