Choose the word or phrase A, B, C, or D that best completes the sentence or substitutes for the underlined word or phrase.

Câu 1: What exactly is the influence of air pollution ...... human beings?

A. to        

B. with           

C. on                      

D. for

Câu 2: The campaign will hopefully ensure the survival ...... the tiger.

A. of                   

B. for                 

C. to                      

D. on

Câu 3: It is possible for local wildlife to coexist ...... industry.

A. to       

B. of                 

C. in                

D. with

Câu 4: The health of our children is being ...... by exhaust fumes.

A. danger                  

B. endanger               

C. dangerous              

D. endangered

Câu 5: The society was set up to ...... endangered species from extinction.

A. prevent           

B. distinguish          

C. preserve                

D. survive

Câu 6: If people stop destroying animals' natural habitat, more species will survive and produce .......

A. offspring       

B. ecology     

C. landscape               

D. benefit

Câu 7: People in this region cultivate mainly rice and vegetables.

A. destroy             

B. grow                   

C. develop                 

D. support

Câu 8: Among the problems facing the national park's manager, the most serious ones are those of ...... and expansion.

A. improvement       

B. reassessment           

C. distinction              

D. maintenance

Câu 9: Oil spills are having a devastating effect on coral reefs in the ocean.

A. powerful             

B. significant           

C. disastrous            

D. detectable

Câu 10: The factory was fined for ...... chemicals into the river.

A. discharging     

B. dumping      

C. producing     

D. exposing

Câu 11: Jean Fragonard was a French artist ...... portrait of children.

A. whose paintings  

B. who has painted 

C. who painted          

D. whose painted

Câu 12: The smoke from burning fuels causes pollution if it ...... into the atmosphere.

A. releases        

B. is released    

C. will be released

D. released

Câu 13: Portland, Maine, is ...... the poet Henry Wadsworth Longfellow spent his early years.

A. where      

B. it where            

C. where is             

D. which is where

Câu 14: Walkers can unwittingly damage the fragile environment .......

A. that the birds live                         

B. where the birds live in

C. which live the birds           

D. in which the birds live

Câu 15: Wild animals ...... in their natural habitat will have a better and longer life than those which are kept in protected areas.

A. live                  

B. to live         

C. living           

D. lived

Câu 16: There should be some measures to protect the humpback whale, ...... an endangered species.

A. to consider          

B. considered              

C. consider              

D. is considered

Câu 17: We should participate in the movement ...... to conserve the natural environment.

A. organized       

B. to organize     

C. organizing     

D. organize

Câu 18: The purchase of wild animals .......

A. should ban          

B. must ban           

C. have to be banned  

D. must be banned

Câu 19: The school has been given 20 computers, half of ...... are brand new.

A. that           

B. those      

C. them        

D. which