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

Câu hỏi

Facebook and Instagram are two popular ______________ networking sites in Vietnam.

A. regional

B. social

C. society

D. community

Đáp án
B. social

Câu hỏi thuộc Bài tập:

E10- I-learn- Unit 4 (2)