According to paragraph 3, how much land do the total preserved zones in the world account for?

Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

Câu 19. I highly appreciate Mr. Harrison's practical advice on minimizing deforestation.

To my mind housework is boring and ____ it takes a lot of time with a hardly visible result.

Worldwide commercial exploitation of animals for food and other products has seriously __________ the number of endangered species.

Glass containers can be used ____ storing food or other items.

Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.

Câu 28. One by one the old buildings in the city have been destroyed and replaced with modern tower blocks.

It is almost impossible ____ our life without electronic appliances which make the housework better and faster.