My uncle _________ drive a car two years ago. Now he drives very well. 

I’m as busy as a bee；________ you bother me with so many questions now?

---______ he have been chosen as captain of our school football team? ---Yes, he______. Can’t you see he’s wearing an armband?

The weather in the south is generally warm, but it________ be very cold sometimes.

The boy insisted that he __________ nothing wrong and that he __________ at once.