—Was it in 1969 the American astronaut succeeded landing on the moon ?—Yes , that’s right .
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.