68．I think this is a good way to keep healthy． (改为否定句)

　 I __________ think this _________ a good way to keep healthy．

67．Can he go to the baseball game? (否定回答) 　_________, he ___________．

66．My little brother sleeps nine hours every day．(划线提问)

　　 How ________ hours _________ your little brother sleep every?

65．Which book is a little _______ (easy), this one or that one?

64．Please ________( not talk ) in class．

63．What about ______ ( go ) to the concert?

62．My parents are learning how ______ (use ) the computer．

61．She draws as ______ (well) as Han Mei．

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

59．We often have fun _______ ( play ) basketball after school．