Complete the sentences with the correct form of the brackets.
1._____you_____(ever drive)a car?
2.While I _____(wait),I saw Sandy.
3.We saw the new horror film last night but I_____(enjoy)it.
4.I_____(have) three different teachers sinceI started learning English.
5.They_____(open) a big department store in the town centre next month.
6.How long_____you_____(be) a doctor?
7.Alfie_____( think) it's really good idea.