Question

【题目】It is __________ for us to do exercises regularly. It is good for our health.

A. tiring B. necessary C. the worst

Answer 1

【答案】B

【解析】试题分析：句意：我们有必要定期的锻炼。这对于我们的健康有好处。A. tiring 令人厌烦的，B. necessary必要的 C. the worst最糟糕的，所以选出正确答案B。