They ___ two free tickets to Canada, otherwise they’d never have been able to afford to go.
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.
A book I read last year,_______name l can't remember, changed my idea about time.