Past or Present Perfect Simple
6. Paul and Gina _________________ an hour ago. They _________________ problems with their flight. (ARRIVE, HAVE)
7. Drugs _________________ a huge problem in the United States. (BECOME)
8. Granddad _________________ in hospital since Monday. He _________________ in hospital before. (BE, NEVER BE)
9. _______________________ the Queen in person? No, but I _________________ Prince Andrew at a concert a few months ago. (YOU EVER SEE, SEE)