89．Wang Lin's home is 4 kilometers away from school．(就划线部分提问)

　　　 　　　　　　is Wang Lin's home from school?

88．My hair is long．Mary's hair is longer．(合并为一句)

Mary's hair is 　　　　　than 　　　　　．

87．Tommy has to do his homework every day (就划线部分提问)

What 　　　　Tommy 　　　　　　to do every day?

86．They did some work last night．(改为否定句(

They 　　　　　　　　　　any work last night．

85．It's not polite 　　　　at others when they are in trouble (在困境中)．

84．Where do you think we 　　　　　　go now?

83．I'm 　　　　　　　from my brother．He is quieter than me．

82．I think this is an 　　　　book．

81．My brother 　　　　　math．He often helps me with my math．

80．Bill is 　　　　　than the other boys in his class．He exercises every day．