1．单词填空
根据课文内容填空
1. I first started ______(use) drugs when I was 15.
2. Some drug users inject cocaine, others smoke it. Both ways are ______(danger).
3. Remember ______(record) these “topic” sentences carefully in order to understand the main idea of the passage.
4. Users become addicted to crack cocaine much more ______(easy) if they smoke it.
