Complete the following sentences using the perfect continuous tense form of the verbs in brackets.
1. Mrs Rose (teach) English for ten years.
2. Her grandma (talk) for three hours
3. A little boy (stand) at the door since noon
4. I want to help Kelly. She (nit work) for months
5. A strange man (follow) us for hours
6. The baby (cry) for fifteen minutes
7. How long (Dan drive)?
8. (you watch) me?
2. Has been talking
3. Has been standing
4. Has been (?)
5. Has been following
6. Has been crying
7. Has Dan been driving
8. Have you been watching