Helen has two sisters and a brother. Her brother is working, but _________her sisters are still at school.

--Do you want tea or coffee?   ----_____. I really don’t mind.(介意)

－Oh, the traffic is too heavy.－Let’s change ________route to the airport.

Mrs. Smith is our English teacher. _______ all love her very much. 

This key ring doesn’t belong to _______, maybe it’s ________.