几道句型转换，讲解

1.school ended up a little earlier than before

school ( ) ( )a little earlier than before

2.in China,summer starts in May and goes on to July

in China,summer ( ) ( )May ( ) July

3,Mr Bush has worked in our school for ten years

it's ( ) ( ) ( )Mr Bush( )in our school

was over 结束，放学

lasts from to时间上的持续

ten years since worked这个我不太确定，后面如果这样写，后面应该是strated working

1.break up 2. starts from to 3.ten years after worked