Fill in the gaps (1–4) with the correct words/phrases from Exercise 2. (Điền vào khoảng trống (1–4) với các từ / cụm từ đúng trong Bài tập 2.)

1) ____________ , smartphones help people communicate with each other. They can communicate through their smartphones instantly with a phone call or a video chat. 2) ____________ , smartphones allow people to be connected to others on the move by using social media. People can 3) ____________ watch videos and listen to songs any time. 4) ____________ , smartphones have a great impact on people’s lives.