group a number of persons and things togetherplease translate it,Arigato!

a group of student谓语动词用单复数?a number of呢? group a number of persons and things togetherplease translate it,Arigato! a group of the number of,a small number of,a number of. In fact,a group of researchers say .In fact,a group of researchers say a number of aspects of modern living-from lack of sleep to exposure to living with air conditioning-may be feeding Americans'weight problem. a group of man 还是a group of men 为什么？ a group of enemies or ,a group of enemy a number of the number of 用a group of 造句. a group of 中文意思 a group of classmates是什么意思 A group of young birds! a group of 怎么用 a growing number of a.number.of?用法 a small number of a number of 造句 a number of同义词