Answer:

1. a intersection b= shade the middle part where a and b intersects

2. a union b= shade the two circles and only those

3. a complement (?)= shade everything except first circle and intersection

4. b complement= shade everything except second circle and intersection

5. a intersection b intersection c= shade the one in the very middle

6. a union b union c= shade all three circles and only those

:) hope this helps