___________________(不邀请你发言的话), you should keep silent at the conference.   (unless)

 ―Professor Li is kind but strict about everything.

―__________. He is a respected professor.

A. Extremely              B. Exactly            C. Generally                 D. Certainly   

So ________ was he about the insects that he kept watching for hours.

  A. addicted        B. interested         C. fond              D. curious

Eating too much fat can ___________ to heart disease and high blood pressure.

 A. contribute        B. devote       C. attend               D. turn

With the _________ of making a fortune, many Chinese went to Australia in the 19^th century to wash sand for gold.

 A. pleasure          B. intention          C. approach                  D. pattern

To know the situation of marketing, the manager telephoned the salesgirl, telling her to ________ the latest sales figures.

A. send off                   B. send out           C. send up                    D. send for

If you _________ yourself to doing research, you will find the solution to the problem immediately.

 A. absorb                    B. bury                 C. apply                      D. engage

The government had to admit that the _________ of blacks from whites was wrong.

A. discrimination          B. separation                      C. prejudice                  D. difference

She is very ___________ to call on you tonight according to what she said to me.

A. likely                       B. probable            C. possible                   D. proper