Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits Read the following passage and mark the letter A, B, C or D on your answereach of the numbered blanks.
A. exchanging
B. changing
C. receiving
D. spreading
* Đáp án
* Hướng dẫn giải
Đáp án: A
Giải thích: exchange information: trao đổi thông tin