Jawaban:

1. My sister is both happy about the news of the contest and nervous about her next performance

2. The exercise could help me in both reading comprehension and mastering speaking comprehension

3. The vacation will take both energy and money

4. The flag ceremony was attended by both the teachers and the students

5. The theme of the novels were both about family and war

6. It was both a long formal event and tedious

7. The heavy exercises could bring the risk of both heart attack and stroke if you do not take a warming up