III. Give the most suitable form of the words in brackets. Add “the” where necessary.

Da Nang is the third (1. large)…….. city in Viet Nam. Its population is a lot (2. small)……. than Ho Chi Minh City or Ha Noi, but it is now by far (3. popular)……..  tourist destination in the country. Da Nang is probably well-known for its resorts, beaches and mountains. It is also considered one of (4. clean)…….. cities in the world. Their residents contribute (5. actively) ………………. to environmental protection than many other places. For some people, this makes Da Nang (6. good)...... .