bài 1

1. satellite

2. games

3. digital radio

4. hard disk recorder

5. digital photo frame

6. smartphone

7. 

8. 

bài 2 

1. make a call: gọi đt

2. rewind: tua ngược lại

3. pick up: nhận thư

4. surf: lướt ( internet/ mạng)

5. download: tải về ( phía sau có from=> phải tải xuống)

6. charge: sạc điện

bài 3

1. like/ finally

2. certainy/ sounds

3. goodbye/ tomorrow

4. along/ join

5. sorry/ like

6. maybe/ make

bài 4 : invention: telephone

1. it was invented by Alexander Graham Bell and Antonio Meucci

2. it was invented in the year 1854

3. it's important because it brings out a new way of communicating with people far away from us. Ex: You can stay in VN and call to your friend in NY