A group of sheep are eating grass and leaves at the foot of the hill.这个句子中 grass为什么不用复数 而leaf用复数

Two groups of sheep together are till one group.翻译 A group of _______ are eating ____ and ____ at the foot of the hill.A.sheep; grass; leaves B.sheA group of _______ are eating ____ and ____ at the foot of the hill.A.sheep; grass; leaves B.sheeps; grasses; leavesC.sheep; grass; leaf D.sheeps; grass; A group of sheep are eating grass and leaves at the foot of the hill.这个句子中 grass为什么不用复数 而leaf用复数 A group of _______ are eating ____ and ____ at the foot of the hill.A.sheep; grass; leaves B.sheeps; grasses; leavesC.sheep; grass; leaf D.sheeps; grass; leafs怎么选B?sheep不是单复数同形吗?sheep不是单复数同形吗？ group,a,of,people,are,young,swimming there are a lot of sheep on the hill A group of girls is(are)用is 还是are? That group of people___singing.A,is B,are There ___ a group of people...用is 还是are? A group of young men are going ______the forest. you are not a member of the administrator group是什么意思 be a group of 中be是is 还是are? a group of people is/are?a group of people 这里是用单数is还是复数are呢? a group of Here are some of my sheep 英语 there are lots of _______ in Australia.A.kangarooes B.wolvesC.sheep选哪个 为什么?急 a number of sheep ____ very happy.is 还是 area number of 后应加are 但sheep是不可数名词,怎么加? You are with a group of students and have found 2 tickets.What do you ask the group 怎么问?