Choose the right auxiliary: DO or DOES.
a. Do/does Henry know italian?
b.Do/Does Mary and you go to the gym?
c.Do/Does Tim drive to work?
d.Do/Does the children keep their room tidy?
e.Does/Do you like going to classica music concerts?
f.Does/Do Mark work on Saturdays?
g.Does/Do you meet your friends regularly?
h.Do/Does she live in a big city?
