The heads are of four famous Americans是美国四个总统的雕像一课...这句话的句型好乱,不太懂我知道哪不懂了，为什么要加OF？The heads are four famous Americans 不行吗

the Egyptians are putting akind of scarf on their heads at the heads of 是什么意思 The board of directors ___shaking heads at the chairman's speech. 填is 还是are?为什么？ the front of their bodies,their heads and theirlegs are black, the front of their bodies,their heads and theirlegs are black, join together at the side of heads The heads are of four famous Americans是美国四个总统的雕像一课...这句话的句型好乱,不太懂我知道哪不懂了，为什么要加OF？The heads are four famous Americans 不行吗 Stryrofoam heads Are you able to supply Stryrofoam heads for the wig? The Dragon Boat FestivalThere are b___ races in mang places of china.the boat are l____ and have colourful d____ heads and tails. heads of cabbage是什么意思?heads of呢? the heads of中的head为什么要加s The Egyptians always ( ) a kind of scarf on their heads. The E__are wearing a kind of skarf on their heads. heads of spinach 英语翻译number of heads Americans 为什么结尾有关“S”?American不就代表了美国人了吗?原文是 The heads are of four famous Americans 英语翻译The Heads of Departments Onboard are responsible for ensuring that new personnel or personnel transferred to new assignments related to safety and protection of the environment,and quality of services offered are given appropriate familia the board of谓语动词用什么书上说用动词单数 可是下面这句话为什么用are?The board of directors are shaking heads at the chairman’s speech.