Complete the sentences using the Present Perfect or Present Perfect Continuous.

1. A: Have you seen dad? B: Yes, he’s at the garage. He has been trying to repair the car for over an hour. 2. A: I have known Ann for three years now. B: Has she been studying with you for that long? 3. A: Bob has lost a lot of weight! B: Yes, he hasn’t been eating properly lately. 4. A: Have you been cleaning all morning? B: No, I have just started.