1. The witness .................... that he .................... that man before.

2. Where .................... when I met you at three p.m.?

3. The professor .................... for sixty minutes when some of his students .................... yawning.

4. How long .................... when you finally .................... the inn?

5. How long .................... that bike when you .................... a car?

6. How many cigarettes .................... before his mother came into the room?

7. He .................... twelve application forms before he .................... that job.

8. How long .................... for help when the rescue team .................... him?

9. Edward was sitting in the pub and drinking beer. His hands were covered with paint so he .................... .

10. Which book .................... when the teacher entered the classroom?