Just as Professor Scotti often______  it, success is ninety-nine percent mental attitude.

He made another wonderful discovery,_____ of great importance to science.

The expert offered us another piece of advice , ___ of great help to our program.

_______, the examination tomorrow has been cancelled (取消). 

Mom is coming. What present ________ for your birthday?

I asked my boss for a month’s holiday and, _________, she agreed.

_________, the house itself is not quite our style, though the price is really attractive.

I will pay _______ I can afford for the present.
A what I think    B what do I think    C when I think        D when do I think

-----What do you think of their marriage?
-----_______ , if I were Kate, I wouldn’t marry him.

— _____ is the best football player in your city?
—Jerry.