Question

---Can I borrow your colour pen?

---Sorry. I don't ______ one, I think he ______ one.

1. A.
   has, have
2. B.
   have, is
3. C.
   have, has
4. D.
   know, does

Answer 1

C
行为动词一般现在时态的否定形式为don't+动词原形；主语是第三人称单数，动词要用第三人称单数形式，have的单三形式为has．