33.My parents sent their best wishes. You met them last month.
=> My parents whom you met them last month sent their best wishes
38.The ballet is about a princess. Her stepmother hated her.
=> The ballet whose stepmother hated her is about a princess
42.My parents gave me a birthday present. I like it.
=> My parents gave me a birthday present which I like
43.I love his song. The song was written by Catherine.
=> I love his song which was written by Catherine
44.I want to know about Mss. Green. She has just won a gold medal.
=> I want to know about Mss. Green who had just won a gold medal
45.This is a new hotel. There are modern facilities in it.
=> This is a new hotel which there are modern facilities in
46.I’ve lost my ticket. It cost five pounds.
=> I’ve lost my ticket which costs five pounds
49. Family dinner often served at 7 o’clock. It’s the biggest meal of the day.
=> Family dinner which is the biggest meal of the day often served at 7o’clock