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1
old book
2
window
3
horse
4
airport
5
new airport
6
organisation
7
university (!)
8
hour (!)
9
economic problem
1
old book
2
window
3
horse
4
airport
5
new airport
6
organisation
7
university (!)
8
hour (!)
9
economic problem
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Ответ:
1
an old book
2
a window
3
a horse
4
an airport
5
a new airport
6
an organization
7
a university (!)
8
an hour (!)
9
an economic problem