Former Brazilian President Luiz Silva was______ Wednesday to be cancer-free, a year after doctors first detected a cancerous tumor in his throat.

A. announced            B. suspected                 C. confirmed                D. removed

 ______ I couldn’t fully understand what he wanted to show in his paintings, I thought his works quite impressive.

  A. As                        B. Since                       C. If                            D. While

With Hurricane Sandy ______ the US east coast, Obama had to cancel Wednesday's campaign events in order to focus on the rescue and response efforts for Sandy.

A. approach B. approaching C. approached D. being approached

 Often organized outdoors or at big venues ______ their popularity, music festivals provide one day or even several days of non-stop entertainment.

  A. due to                   B. in spite of          C. in honor of               D. apart from

The drilling in Antarctica dragged on slowly because of lack of money, equipment breakdowns, environmental ______ and severe cold.

  A. concerns              B. assumption               C. occupations              D. ignorance

 While working outdoors, Linda was ______ by the heat and fell to the ground, unconscious.

  A. astonished       B. depressed          C. overcome          D. hit

 My wife ______the night shift when my plane ______. That’s why no one is to meet me at the airport today.

  A. will be working; arrives                             B. was working; arrived

  C. will have worked; has arrived                     D. is working; is arriving

 You can take the rest of the pie with you. ______, I wish you would, since I’m on a diet.

  A. On the other hand                                     B. As a matter of fact

  C. As a consequence                                     D. In addition to it

 ______ in a branch of the tree ______ a note which read "I'll meet you at the School Gate".

  A. Sticking; was there                                B. Stick; was there                     

  C. To stick; was                                         D. Stuck; was

 The scientists hoped further research would lead to a better understanding of the disease, how ______ spread, and what other factors might be involved.

  A. they                     B. it                C. one                           D. which