раскройте скобки Children usually .....( begin) school on the first of

Раскройте скобки Children usually .....( begin) school on the first of September.
2) last year we .....(begin) school on the second of September.
3)Tomorrow our lesson .......(begin)at eight o'clock .
4)The children always .....,. (Wear) uniforms when they are at school. Помогите как это необходимо делать