1.Can you swim?
2. I could run faster, when I was younger
3. ???
4. Can I smoke here?
5. You must write him immediately
6. Lessons must start at 8:30, exactly on schedule
1. Who visited me in the hospital yesterday?
2. Where did John visit me yesterday?
3. When did John visit me in the hospital?
4. Who did John visit in the hospital yesterday?
a
a
b
b
a
a
b
