11. Choose the word which has the "oo" part pronounced differently from that part of the others.
a.food
b,took
c.cook
d.look
12. Choose the word which has the "u" part pronounced differently from that part of the others.
a.fun
b.uncle
c. difficult
d.sun
13. Choose the word which has the "ch" part pronounced differently from that part of the others.
a.check
b.change
c.toothache
d.children