57．This book is______ (interesting) than that one．

56．My friend is ______ ( outgoing ) than me．

55．We should eat a _________ (balance) diet 　to stay healthy．

54．There are sixty _________ (minute) in an hour．

53．We’re __________ (leave) for Beijing for vacation next week．

52．I’m planning __________ (spend) time in the beautiful countryside．

51．Thank you for __________ (invite) me．

50． Our class is going to win the first p______ for the exercises contest．

B) 用所给词的适当形式完成下列句子。

49． I　 want to be a policeman　 in　 the　 f______．

48．Yao Ming is　 a　 basketball　 p______-．