从每小题的A、B、C、D四个选项中，找出其划线部分与所给单词的划线部分读音相同的选项。
1. laugh
A. daughter B. neighbour C. enough D. though
2. citizen
A. uncle B. ocean C. rescue D. percent
3. complete
A. scene B. elect C. student D. respect
4. alarm
A. reward B. dollar C. towards D. farmer
5. daily
A. bargain B. said C. curtain D. explain