3
2 in
3 on
4 in
5 at
6 on
4
2 Summer starts on June
3 я не знаю что это, сорян
4 тут тоже самое что и в 3
5 The school year starts on the 1st September
6 It finishes on the 31st May
5
1 On the 1st September
2 On the 31st May
3 On the 22nd March
4 On the 3rd July
5 On December
6 On June