II. Supply the correct form of the words in parentheses to complete the sentences. (1 m)
1. Vietnam’s first astronaut Pham Tuan enjoyed floating around in the _______ environment. (weight)
2. All buildings in Sweden will be _______ by solar energy in 2050. (heat)
3. The_______ chemical waste is dumped into the river. (poison)
4. Don’t drink that water. It’s ___________. (contaminate)
III. Complete each sentence with the correct tense or form of one suitable verb from the box: (1 m)
go study offer buy 1. Hoa _______ a vacation in Japan because she won her school’s Best Student Prize. 2. Quang sold old newspapers and _______ textbooks for the new school year. 3. His parents didn’t let him _______ to the beach alone last weekend. 4. Don’t worry. I think she will pass the exam. She _______ hard for months.