用所给单词的适当形式填空。
1. As a child the thought kept __ (occur) to me, "Who am I?"
2. Cheer up! All the signs __ (indicate) that business will get better.
3. It is time that the entertainment industry of China __ ( reform) itself.
4. However, most people have not yet ____ (grasp)what we have been saying.
5. My uncle owns a little farm. Sometimes he __ (hire) two or three labourers to help his harvest.