Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.
A. depression
B. deduction
C. decline
D. disconnection
* Đáp án
D
* Hướng dẫn giải
Đáp án D “proliferated” = expanded: làm cho mở rộng, tăng nhanh