Since 1921,the Communist Party of China（中国共产党）has been leading the Chinese people a better life.（　　）

A．ofB．onC．atD．to

一A nice T﹣shirt! is it？

一It's 50 yuan.

A．How longB．How farC．How muchD．How old

Taichi,part of Chinese culture,is an exercise which helps people improve in health.

A．themselvesB．ourselvesC．itselfD．myself

一 ？

一Yes.I'd like a bowl of beef noodles.

A．Can you help me

B．How was your day

C．May I take your order

D．What would you like to drink

You can't make progress in math learning you work harder.

A．ifB．afterC．unlessD．because