____the sketch of Xiao Shenyang made a _____has been known to us all.

   A.That; hit             B. What; strike       C.Why; beat         D.which; knock

You waste much time______pig flu.on the internet..

     A. to know          B. knowing            C. know           D. to be known

It’s not easy for the expert to ______ pig flu.in humans from regular human seasonal influenza.    

A. distinguish           B. separate            C. identify          D. recognize

The new dictionaries are very useful. They ________ well and ________ already.

A. sold; have been sold  B. sold; had sold out C. sell; sell out     D. are sold; have been sold out

________ blood if you can and many lives ________ be saved.

A. To give, may     B. Give, will  C. Giving, can        D. Given, must

Were you given a _____, or did you have to do it?

A. job     B. duty   C. request   D. choice

This is _____ best kind of _____ pen you can get here.

A. the, the      B. the, a C. the, 不填    D. a, the

We can’t ________ the car. There ________ something wrong with the engine.

A. drive; must be   B. start; must be.   C. start; has   D. begin; must have

During the long-term cooperation, Mr. Wilson ________ a smart, honest and trustworthy man.

A. appeared    B. made   C. turned     D. proved

I’m afraid we can’t have coffee; there’s _____ left.

A. nothing      B. none  C. no one       D. no any