Task 2. Choose the correct alternative 1. How long have you studied / did you study before you have qualified / you qualified 2. Is this the first time you've cooked / you cooked dinner for the whole family? 3. What can we do? I'm sure something has happened / happened to Alex. We've been calling/We called him for over an hour and he still hasn't answered / he still hasn't been answering 4. We have posted / We posted the contract to you three weeks ago. If you haven't received/ you didn't receive it yet, please email us immediately. 5. I'm exhausted because I've worked/I've been working in a restaurant for the past three weeks. I've never realised/I never realised before how hard the work is!​