All_________provided a living for nearly 90 percent of the population

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* Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

All_________provided a living for nearly 90 percent of the population of the American colonies.

The thing needed

that is needed

what is needed

for our needs

Giải thích

Chọn A Cấu trúc “be to blame for: là nguyên nhân chịu trách nhiệm cho việc gì.”

Các đáp án còn lại không hợp nghĩa.