题目内容
It’s necessary exercise every day.
| A．take | B．takes |
| C．to take | D．taking |
解析试题分析：句意：每天锻炼是必要的。It is +形容词 +to do sth.it代替动词不定式做后置定语，故选C。
考点：考查动词不定式的用法。
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