1. did you go last night? Anywhere interesting?  
2. did you start learning English? I started 4 years ago. 
3. did you do last night? Was it exciting?  
4. can I open this box? You have to use a knife.
5. can she buy a nice dress? She must go to Top Shop.
6. must I get off the bus? At the next stop.
7. shall we buy for our mother's birthday? Let's buy her some flowers.
8. must I leave? You must leave at two o'clock.
9. can we get there? We can get there by car or bus.
10. is going to take us to the station? My dad will take us.
11. shall we write in the letter? We can write about our adventures.
12. knows the right answer?