Choose the correct answer.
1 of 5
She _____ studying for 6 hours when she went to bed.
2 of 5
_____ you _____ long in that flat when you bought your house?
3 of 5
How long _____ you _____ when the plane took off?
4 of 5
They _____ dating long when they decided to get married.
5 of 5
We were so tired when we arrived at the hotel. We _____ all day!