1．─Shall I take a message for you?

─____________．

A．You are welcome  B．With pleasure

C．Thanks for your message    

D．It’s nice of you

2．As is known to us all ,  it takes years of ________ practice to gain ______ skills of ______ expert in this field．

A．不填；the；an     B．the；the；不填

C．the；the；an     D．a；不填；the