选择,将字母代号填到括号里

选择,将字母代号填到括号里1(13分) () The boy often plays violin after school.A．a B．the C．不填 2(13分) () Yesterday XiaoMing practised Kungfu at the park.A．不填 B．the C．a 3(12分) () The students were back school after a holiday.A．inside B．at C．of 4(12分) () Her sister her homework three years ago.A．didn't B．doesn't C．didn't do 5(12分) () Last night Pat sent lots of emails her friends.A．to B．at C．from