Fill in each blank

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II. Fill in each blank with an appropriate preposition. (2 points)
21. Paul was ashamed.
22. Let's agree . . the best way to solve this problem.
.... himself after his unfair attack on his friend.
23. John was angry
Ann's attitude towards the children.
24. Sheila was anxious..
her impending French test.
25. You must take all the tablets if you are to benefit .. . them.
26. My teeth are very sensitive ..
27. Carrots are rich .. . vitamin A.
.. cold things such as ice-cream.
28. Sally was able to sympathise
my situation as she'd been through something
similar before.
29. I had to lean .
. the wall as I felt as if I was going to faint.
30. The relationship
a mother and her baby is a very special one.