III. Fill in the correct prepositions .

1)  Astana is the capital ________________ Kazakhstan .

2)  I started school ________________ the age of seven .

3)  Nine years _______________clsses are compulsary .

4)  Our school year usually begins ________________ the first ______________ September .

5)____________ the first of  September we get acquainted _____________ our teachers .

1. of

2. at

3. of?

4. at/of

5.on/with