根据句意选词填空。注意每个单词的正确形式。

already,  play,   check,  one,    be

小题1:It’s a good idea _____________ your vocabulary notebook every day.

小题2:Spacecraft have __________ been to Mar.

小题3:The __________ prize is the holiday of your dreams in England.

小题4:–Where have you _________ these days?     --To Beijing.

小题5:The little boy practises ___________ the violin every day.

麻醉处方就保存几年？

A.５年； 

B.３年； 

C.２年。