Choose the correct option.

1. How long ... (you, know) Connie?

   1.   ?    have you known
   2.   ?    have you been knowing

2. Who ... (use) my toothbrush?

   1.   ?    has used
   2.   ?    has been using

3. Who .. (use) the car? - I was. Is there a problem?

   1.   ?    has used
   2.   ?    has been using

4. Would you like to borrow this book?- No, thanks. I ...(read) it before.

   1.   ?    have read
   2.   ?    have been reading

5. What are Tom and Peter doing? - They ... (work) in the garden for three hours.

   1.   ?    have worked
   2.   ?    have been working

6. Is Nick here? - I don't know. I ... (see) him all day.

   1.   ?    haven't seen
   2.   ?    haven't been seeing

7. Why is Helen upset? - She ... (lose) her bag.

   1.   ?    has lost
   2.   ?    has been losing

8. I ... (always/ believe) that exercise is good for you.

   1.   ?    have always believed
   2.   ?    have always been believing

9. Emily ... (teach) maths since she left university.

   1.   ?    has taught
   2.   ?    has been teaching

10. Have you found your umbrella yet? - No, I ... (look) for it for an hour now.

    1.   ?    have looked
    2.   ?    have been looking