Complete the dialogues below with the present perfect simple or present perfect continuous of the verbs in brackets. If both tenses are possible, use the present perfect continuous.
1. A: I'm very tired. We _______ (walk) too fast.
B: Maybe you are right, we _______ (walk) 10 kilometres in only one hour and a half.
2. A: You _______ (drink). You can't take the car.
B: But I _______ (only/drink) a couple of beers!
A: That isn't true; you _______ (drink) four beers.
3. I _______ (wait) for you all morning! Where _______ (you/be) all this time?
4. I _______ (teach) in this school for 20 years, and I _______ (meet) thousands of students from hundreds of different countries.
5. A: It smells fantastic!
B: Yeah, I _______ (make) cookies all afternoon.
A: Let me see. Wow! You _______ (make) a lot of cookies!
6. A: Someone _______ (call) all morning. They _______ (call) at least ten times.
B: Well, you _______ (sit) next to the phone all this time. You could have picked it up.
7. I _______ (work) here for over a month and I _______ (not meet) the manager yet.
8. I _______ (lose) my keys and I _______ (try) to contact my wife all morning, but she isn't answering her phone.
9. What's the matter with you? You _______ (say) anything since this morning.
10. Look, I _______ (wash) my car. Doesn't it look new now?