all of them are in nice boxes,为什么是them

all of them are in nice boxes,为什么是them 是all of them are 还是 all of they are Of all the longest living people in the world,few of them are millionaires.翻译 either of them is /all of them are一样吗 there are 39 students in my class in all,21 (of which) are girls.为什么不能用 of them? All of they还是All of them are my friends. There are one hundred birds in a tree,how can you catch all of them. The patatoes are so cheap that all of them in the market have been_______. There are nineteen students in my class and n() of them are girls.根据首字母填空 there are three libraries in our school,all of which were built three years ago.如果把句子里的 all of which 改成“and all of them All of them,Are the love you are given me. There are many kinds of food in the restaurant ,all of them delicious .第二句那边为什么没有系动词? All of them are young pioneers为什么要加of? 翻译:in our zoo there are all kinds of animals.can you find them in this picture? In the garden there are varirties of beautiful flowers,____-off a pleasant sA all of which giving B all of them giving You are none of them .Becase you are all of them. There are six lights in the classroom All of them are turned on If I turned off two then how many lights are there in the classroom yet ? ( )hand in their homework on time.A,all of they B,all them C,all of them D,all they