Read the following passage and mark th...

Câu hỏi: Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 56 to 64

A. “The reasons Why Mobile phones Are popular

B. “Technological Innovations and Their Price”

C. “The Way Mobile Phones Work”

D. “Mobile Phones: A Must of Our Time”