根据提示补全句子
1. ______ (curious), the shy boy became extraordinarily active when the discussion began.
2. Over the past decades, the number of students going abroad for further study ______ (be) on the increase.
3. ______ (struggle) with my Maths lately, I am at a loss what to do.
4. ______ (intend) for preschool kids, the book enjoys great popularity.
5. ______ one occasion, I failed the exam and my head-teacher called me to his office and gave me a hard lecture
6. She didn’t give an adequate ______ (explain) for being late, which annoyed the teacher greatly.
7. ______ (confuse) about the varieties of organic food, I seemed at sea which to choose.
8. With so many ______ (attract), the theme park gets the most visitors from home and abroad.
9. The Mid-term examination ______ (approach), students are under great pressure, preparing for it.
10. Linda, ______ (represent) our school, took part in the English speaking competition.
11. I didn’t mean to hurt you; I ______ (不是指你) when I said “a boring man”.
12. It is suggested that you book the ticket ______ (提前订票) to guarantee a better seat.
13. Heartbroken with disappointments, she sat alone in the room, and memories came ______. (涌上心头)
14. ______ nature(接近大自然)benefits kids both mentally and physically.
15. The beauty of flowers is immerse and ______ many designers and artists use this patterns of flowers within their artworks. (难怪)
16. A caring hug, in most cases, has the power to ______.(使我们安心，自在)
17. It is worthwhile ______ (传播知识是值得的)in poverty-stricken areas.
18. Nothing can shake our belief and prevent us ______ enemies.(保卫国家，不受…)
19. For fear of disturbing the sleeping baby, she talked with her husband ______. (耳语，轻声说)
20. To avoid being caught, he secretly ______ through the back door. (溜进教室)