( ) 1. Where were you at 9：00 a. m. yesterday？

( ) 2. Are you scared of dogs?

( ) 3. What was your uncle doing this time yesterday?

( ) 4. When did you start swimming?

( ) 5. What happened while Mom was cooking？

( ) 6. How long have you been collecting stamps?                     

                               Ⅱ     

A. He was watching traffic on the road.

B. Tom broke the glass.

C. I was at the train station.

D. Not really.

E. When I was 7 years oldF. For 3 days.