1. 1 вариант
1)book (a book)
2)yellow (a yellow)
3) sun (The sun)
4) boy (boys)
5) girls

2 вариант:
1) animal (an)
2) Queen (the)
3) watch (watches)
4) bus
5) bikes

2. 
1 вариант
1) men
2) mouse
3) these
4) halves
5) policemen
6) feet
7) that
8) roofs
9) woman

2 вариант:
1) Knives
2) child
3) those
4) oxen
5) lives
6) person
7) this
8) tooth
9) wolf

3.
1 var.
1) This is Helen's T-shirt
2) it's my book
3) your sister's shoes
2 var.
1) Alison's sweater
2) children's bikes
3) his little sister

4. 
1 var.
1) 's
2) has
3) 's
4) is
5) 's
2var.
1) is
2) has
3) is, 's
4) is
5) 's