Mary will have finished all her work _______ her boss returns.

A. stand                          

B. understand                        

C. write             

D. interrupt

A. including                 

B. limiting                        

C. especially           

D. possibly

A. It seems to flourish in the presence of certain pollutants.

B. It has been a menace to fish and humans for over 3000 years.

C. It is the oldest life form on earth.

D. In large concentrations, it poses a threat to fish but not to humans.

A. civilian                      

B. official                     

C. temporary              

D. tsunami

A. vanishing                    

B. damaging                  

C. polluting                

D. destroying

A. Peter promised to give Mary a wedding ring after he got home.

B. Peter asked Mary to pay him a visit after he' got home.

C. Peter promised to visit Mary after he got home.

D. Peter promised to telephone Mary after he got home.

A. trained                       

B. proved                  

C. impressed                

D. performed