In a Han Dynasty tomb, they found some precious jars and vases, _______ are valuable.
-Waiter?-______?Just a minute please.
One more week,______we will leave school and have a holiday.
He is no fool at all;_________,he is the smartest boy I have ever seen.
-How about his design?-Well, to tell the truth, it is______but satisfactory.
-What's up? You look worried.Well,I_____on the problem for 5 hours but I haven't got a single clue.