April Fool's Day is supposed to be a day to play jokes on others in hopes of getting a good laugh and making one feel like a fool. However, the April Fool's Day of 2013 was quite different for my morn and me.

     That day my friend Jimmy and I were playing a game. I had dropped down from a bar(横木) many times in the past without ever having a problem, but that day the simple act of dropping to the ground became a nightmare(噩梦). I broke my arm.

Jimmy's dad heard my crying and rushed out to see what was going on. When he saw the

problem, he quickly put me into his truck and went inside to telephone my mom and let her know he would take me to the hospital. As that day was April Fool's Day, Mom was not buying it and really thought all this was a big joke. Mom was finally convinced(说服) by Jimmy's room. When she saw me, she broke down in tears because she felt so bad--she originally (起初) thought this was just a big prank(恶作剧).

      I guess one could compare this to the story of "The Boy Who Cried Wolf". Since I had pulled pranks before, it is no wonder that my morn didn't believe it. I as well as my morn was made to look like a fool that day. We both learned a valuable lesson.

给下列数字填上合适的单位：

①悉尼的各种建筑多以樟树、法国梧桐为________。

②建筑材料研究人员把制好的壁网框架放在水里，让苔藓类植物________附在上面。

③巴西各大城市的楼房常见绿色荡漾，青草在微风中________。