Choose the correct form of the verbs: 1- My sister has been/ was interested in medicine ever since she has been / was a child. 2- How long have you studied /did you study before you have qualified / qualified? 3- Where have you first met / did you first meet your boyfriend? 4- Is this the first time you've cooked / you cooked pasta? 5- We have wanted /wanted to go to the cinema last night, but there haven't been/weren'tany seats. 6. We have posted/ posted the parcel three weeks ago. If you still haven't received/ didn't receive it, please inform us immediately. 7. Albert Einstein has been/ was the scientist who has developed/ developed the theory of relativity. 8. Glendda has worked/ worked extremely hard when she has been/ was a student. 9. We waited/ have been waiting over an hour and he hasn't phoned/ didn't phone yet. 10. I haven't been working/ didn't work very well recently. Put in the present perfect or past simple of the verbs in brackets 1. I _____ (have) these shoes since my eighteenth birthday 2. I _____ (tidy) my desk, but now it's in a mess again. 3. The last time I _____ (go) to Brighton was in August. 4. I'd like to meet a ghost, but I _____ (never/ see) one. 5. My father ______ (work) as a chief engineer for twenty years before his retirement. 6. Harry ____ (work) in the same job for thirty years 7. What time ________ (you/ get) to work this morning? 8. Martin _________ (be) to Greece five times. He loves the place. 9. They ____ (not/go) to the party last Sungday. 10. It's the fifth time you _______ (ask) me the same question 11. Of course I can ride a bike. But I ____ (not/ride) one for years. P/s: Làm và giải thích giúp em với ạ