Câu số 31:  

Which could be the best title of the passage?

Câu số 32:  

The phrase "the stuff" in paragraph 1 refers to

Câu số 33:  

The word “innovative" in paragraph 2 mostly means

Câu số 34:  

According to the passage, recycled cardboard can be used for

Câu số 35:  

Which of the following is TRUE about cardboard buildings as stated in the passage?

Câu số 36:  

Which is the most suitable title for the passage?

Câu số 37:  

The word “deemed" in paragraph 1 is closest in meaning to

Câu số 38:  

According to paragraph 2, why does the idea of school closure seem appealing at first?

Câu số 39:  

The word "them” in paragraph 3 refers to

Câu số 40:  

The word “invariably” in paragraph 4 is closest in meaning to