1. Many adults learn English because it is (usage)_____useful________ for their work.
2. The Internet helps people communicate with friends and (relation)____relative__________.
3. Since the (introduce)____introduction__________ of Malay in schools, it has become the most commonly used language in Malaysia.
4. They have to go to work though it is raining ____hard________. (hard)
5. The most ____disastrous _____ earthquake in 1923 in Japan killed about 150,000 people. (disaster)
6. It was the biggest ______eruption _______ of Vesuvius for some years. (erupt)
7. Nguyen Du was the _____writer______ who wrote “Kieu”. (write)
8. Christmas is a great_____celebration_______ in many countries. (celebrate)