Liu Xiang and Yao Ming are famousplayers.____of them have set a good example to us.

－You’ve dropped __________ “s” in the word “across”.－Oh, you are right, __________ letter “s” should be doubled like this “cross”.

It be really cold in November in Hefei though we usually have warm and sunny days.

Sorry, I’m late, but the traffic is too busy today.—Well, I know you’re late. Don’t make any _______ for yourself next time.

Mr. Smith, would you please speak a little more ________ —Sorry! I thought you could follow me.