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

Nowadays, billions of devices are ______ to the Internet worldwide. It’s an amazing invention.

A. fastened

B. attracted

C. strapped

D. connected

Đáp án
D. connected

Câu hỏi thuộc Bài tập:

E10- I-learn- Thi cuối kỳ II