1 prevent 2 protecting 3 prevents 4 avoid 5 protect
а) this / these
1) Look at this picture!
2) Do you like these poems?
3) These pupils are from my school.
b) that / those
1) Give me that book, please?
2) Take those magazines and read them.
3) Do you like those posters?
French-fried potatoes
Fries
Strips of potato
Crisps
Chips