1.No word must ever leak out about this military action! It has to be a clandestine operation in order to succeed. Which word is a synonym of "clandestine"?

　　a. family

　　b. useful

　　c. dangerous

　　d. secret

　　2. Put this medicine on your arm and rub it into your skin until it's invisible.It will inhibit the infection's attempt to spread. What does “inhibit” mean?

　　a. live in a certain place

　　b. block or slow down

　　c. itch or burn

　　d. help to do something important

　　3 When your plan brings us great wealth, you will be rewarded for your sagacity.

　　A. good looks

　　B. mistakes

　　C. intelligence

　　D. huge appetite for herbs

　　4 Of course, I’m not saying that your plan is no good. I tend to be optimistic,so I won’t be surprised when you succeed.

　　A. expecting the best to happen

　　B. needing glasses to see

　　C. full of gas

　　D. unselfish

　　答案【D,B，C,A】