Do you know _____ girl with long curly hair？

Yes，she is Mary．She plays ______ piano very well．（　　）

A．a；/B．the；/C．the； theD．a； the

It is five years since we began to enjoy a ______ spring holiday each year．（　　）

A．ten﹣dayB．ten dayC．ten days'D．ten days

What do you think of Wilson's speaking？

No one does _______ in our school．（　　）

A．goodB．wellC．betterD．best

I'm a little hungry，Mum!

There are some apple pies on the table，you may take ______．（　　）

A．itB．thisC．thatD．one

It is accepted by everyone that knowledge is the most valuable _______ for human beings．（　　）

A．standardB．treasure

C．inventionD．instruction