1. _______ hard hat Is this?	2. __________she? She's Mary Smith.	3. David, _______ sister is my friend, is very nice.	4. Mary, ________ father is our teacher, loves David.	5. ______ this nice boy?
6. _________ just bought a goldfish?	7._______ going to drink the tea?	8. _____ clipboard is this?	9. ______ he? I don't know him.	10. ______ won the goldfish?
11.________ been good at English? Mary has.	12.______ backpack is heavier than mine?	13. _______driving the bus?	14. _____the owner of this plant?	15. ________got blond hair? Lucy has.
16. John,________ sister is a nurse, is my best friend.	17.______ sitting on the floor? Jane is.	18. ____ prepared her lunch?	19.__________ her best friend?	20. _____ calculator is this?