Bob can’t come to the club today because he help his father water the flowers in the garden.
- A.can
- B.must
- C.has to
- D.have to
答案
正确答案:C
知识点:情态动词

can能够,must必须,have to不得不。根据句意“Bob今天不能来俱乐部,因为他……帮他爸爸在花园里浇花”可知,应该是“他得帮爸爸浇花”,由于主语是第三人称单数he,所以用has to。

略
