根据下列句子的意思，用括号中所给词的正确形式填空，每空限填一词。

1. President Hu Jintao _______ (fly) to the earthquake-hit region in Yushu, Qinghai on April 18,2010.

2. I'm _______ (feel) terrible today, so my mother will take me to see a doctor.

3. The compass helped people make many ________ (discover) in the past.

4. He held a glass with care, because he was afraid of _______ (break) it.

5. Our village has developed ______ (rapid) now, our life is becoming better and better.