根据句意写出下列句子中各月的名称。

1. The two hottest months are J__________ and A__________. 

2. Classes begin in S__________ We most come back to school again.

3. There will be a seven-day holiday in O__________.

       We can have a good time again.

4. The last second month is__________.

5. In the USA,in__________ people are very happy,because they have a Christmas Day.