chia dạng đúng của từ trg ngoặc
1. there are lots of...........( beauty ) beaches in Việt Nam
2. is Mr.Ha a ...............( business )?
3. she's from Việt Nam. What's her.............( nation )?
4. Air ................ ( pollute ) is a big problem in big cities.
5. In the............ ( neighbor ), there is a hospital and a factory