most of them found it to be a very good one.么意思?

I found many children there,most of them being boys.疑问疑问?I found many children there,most of them _____ boys.为什么空格处是being,而不是were? most of them found it to be a very good one.么意思? Most of them are sweet. most of them--------young people 30.There are 103 elements found in nature,____ are metals.A most of which B most of them C most of that D most which 选A?为什么不选B？ I've found one of the most beautiful pictures__can interest you most during my stay in Tibet.急 I've found none of them to be any good.find后面不是加do吗 i found a set of keys and an english book in thelibrary ,who什么them? Most of them are of my “I like your furniture very much .” “Thank you.We brought_____in shanghai.A the most of them B most of them C most of it D the most of it most of which与most of them有什么区别? Have you looked ( )the questions on the blackboard Yes,I can answer most of them 如何翻译I have know a great many troubles,but most of them never happened I have known a great many troubles,but most of them never happened如何翻译 谚语I have known a great many teoubles ,but most of them never happend什么意思 一道语法题目92.in all parts of the state,pines are the most common trees in Georgia.A.Found B.Finding them C.To find them D.They are found Most of them like chinese food.翻译 most of them were expensive ones .