根据下列句子所给汉语意思，写出空缺处各单词的正确形式。
Grandfather, father and sons belong to three different                 (辈).
After supper many people go to the Central Square just for e               （娱乐）.
---Tom, look at your papers. How did you do your homework?
--Sorry, sir. You have c       me with my twin brother. I’m Jim
Yesterday was our open day. Many children came into our school looking around        (好奇).
 Don’t be in such a hurry; you’d better eat a few m_____ of food before you go shopping.
I saw some girls were talking about something in w       . But when I got closer they all ran away.
The painting in the flag of our class r        unity, strength and effort.
As the teacher         (走近) the dormitory of his students, the rooms became quiet.
If bright sunlight is         (聚焦) on dry wood with a glass, it will start burning.
The sports reporter was watching the football match,         (评论) all the time.