My sister bought a coat ______. It was a bargain. [ ]

The farmer was very thankful to the doctor _________ saved his son．

What do you think about _________ dress in the shop window?—Oh, it’s beautiful. Linda will be pleased if she can have it as _________ birthday present.

_____ do you go to the zoo with your brother?— Once a month. [ ]

He comes here ____ bike. [ ]