Grandpa: I think we’re going to miss the train. Must we go so slowly?
Mary: yes, we must. 6___
Grandpa: what does that mean?
Mary: It means we don’t want to have an accident.
Grandpa: 7___
Mary: No, Grandpa. There are still four or five blocks to go. Then we have to turn right.
Grandpa: Doesn’t Ellen always turn next to the school?