=>
II/
1. Interested ( người -> tính từ thêm ed) 
2. Development : sự phát triển 
3. Communication : sự giao tiếp 
4. Advertisements : quảng cáo 
III/
1. We need you to retell the last piece of news on TV.
2. Lan practices listening to BBC News every day.
3. I finished reading a comic book an hour ago.
4. The first color TV pictures were produced in 1926.
Test 4/
I/
1. Are / using 
( most young students -> số nhiều dùng are / sau giới từ + Ving) 
2. How to operate ( how to + V : cách làm gì) / have never tried 
3. Has he ever explored (HTHT) 
4. Watching / chatting ( prefer Ving to Ving / spend time Ving)
II/
1. Lan enjoys watching this program. 
2. Would you like to go to the cinema? 
3. It's very easy to get information nowadays.
4. You have read this article on the website, haven't you? 
5. Tom isn't old enough to go to the cinema by himself. 

II.
1.interested 
2.development 
3.communication 
4.advertisements 
III.
1.We need you to retell the last piece of news on TV.
2.Lan practices listening to BBC News every day.
3.I finished reading a comic book an hour ago.
4.The first color TV pictures were produced in 1926.