Điền từ thích hợp vào chỗ trống:

improve - information - interesting - atmosphere - officially
1. I find it _____________ to have a trip to the countryside near Ba's village
2. He has __________been invited to that important meeting recently
3.If you want to ___________ your English ,you must practice it regularly
4. The forgein tourist were welcomed by frienly__________ in Viet Nam