Question

1、Mary is eighteen years old.（改为同义句） 2、We walk

1、Mary is eighteen years old.（改为同义句） 2、We walked for another two hours.（改为同义句） 3、Tom isn't asTim atplaying the drums.（改为同义句）4、She is taller than any other student in her class.（改为同义句） 5、I think my mother is smarter than my father.（改为否定句）

Answer 1

1 Mary is at the age of eighteen.
/
Mary is an eighteen-year-old girl.

2 We walk for two more hours .

3 Tom doesn't do as Tim well in playing the drums.
注：be good at = do well in 擅长于……

4 She is the tallest student in her class .

5 I don't think my mother is smarter than my father.

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Answer 2

1. Mary is eighteen
   

2. We spend another two hours on walking.

3. Tom does not play the drums as Tim.

4. No student is taller than her in her class.

5. I don't think my mother is smarter than my father.

供参考