Complete the sentences, using suitable prepositions of time.
1. In England, schools usually start _____ 9 a.m. and finish _____4 p.m.
2. They built our school a long time ago, maybe _____ 1990.
3. We are going to visit Thang Long Lower Secondary School _____ January.
4. The school year usually begins _____ September 5th every year.
5. The children like playing badminton and football _____ their break time.