题目内容：

Now the examination score serves as the main c1. for students’ academic performance in many countries.

2. Many coffee drinkers in China have been in a panic that coffee causes cancer after a post was c2. on social media on the weekend.

3. As a key c3. of traditional Chinese medicine, acupuncture has been practiced in China for more than 2,000 years to treat or prevent health problems.

4. It’s not t4. of Bob to be so critical because he’s always kind to others.

5. The illegal use of child labor in this company, which caused two boys’ deaths, set off a b5. of goods made by it.