1.

A:  I've had terrible headaches for about a week now.
B:  Well, I think you'd and see a doctor about them.

2.

A:  Did you see the state of that lorry after it hit the wall?
B:  Yes. The driver must well over the speed limit.

3.

A:  your driving test!
B:  Thank you very much. I thought I was bound to fail, but it's nice to be wrong.

4.

A:  Do you want me to read through the report before you send it off?
B:  Yes, I'd would.

5.

A:  What were all those people doing near the traffic lights when we passed?
B:  Oh, I think an accident. I saw an ambulance there.
B:  Oh, I think an accident. I saw an ambulance there.