试题题干
Word Formation
Complete the following sentence with the proper form of the word in the bracket.
(benefit) A good diet is 
to health.
参考答案
试题解析
此处缺少形容词做表语。
is是系动词，系动词后表语用形容词。be beneficial to意为对...有益。所以变benefit为形容词beneficial。
句意：好的饮食对健康有益。
Word Formation
Complete the following sentence with the proper form of the word in the bracket.
(benefit) A good diet is to health.
此处缺少形容词做表语。
is是系动词，系动词后表语用形容词。be beneficial to意为对...有益。所以变benefit为形容词beneficial。
句意：好的饮食对健康有益。