Câu số 41:  

What does the word “that” in the passage refer to?

Câu số 42:  

Which of the following is NOT mentioned as a reason for a higher accident rate among the poor?

Câu số 43:  

The word “prevalent” in paragraph 1 is closest in meaning to        .

Câu số 44:  

In paragraph 1, the author implies that       .

Câu số 45:  

According to paragraph 1, which of the following is true?

Câu số 46:  

In paragraph 2, the word “salvaged” is closest in meaning to                  .

Câu số 47:  

According to paragraph 2, environmentally conscious design incorporates             .

Câu số 48:  

In paragraph 3, the author mention both demolition and construction crews in order to ____.

Câu số 49:  

The word “they” in paragraph 3 refers to               .

Câu số 50:  

In paragraph 3, the author mentions all of the following hazardous materials

found in a debris from a demolition site EXCEPT .