问题描述：
改同义句 tara is better at chemistry than Tina Tina i
改同义句
tara is better at chemistry than Tina
Tina is ______ ______ good at chemistry _______ tara
改同义句
tara is better at chemistry than Tina
Tina is ______ ______ good at chemistry _______ tara
问题解答：
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