I couldn't believe that they were brothers. They were as different as_______.

A. a great deal of

B. a large number of 

C. a few

D. many

A. red and blue

B. blue and red

C. white and black 

D. black and white

A. I am interesting to hear that.

B. It's nice of you to say so. 

C. Oh, poor me.

D. Am I ? Thanks.

A. Who are you?

B. Sure 

C. Hang on, please, I will put you through.

D. Of course, you can.

A. profit

B. interest

C. guarantee

D. charge

A. The new computer programs are quick and accurate. 

B. New computer programs have enabled us to solve many problems quickly and accurately. 

C. We can solve problems quickly and accurately without computers. 

D. New computer programs are not able to solve many problems quickly and accurately.