in their house 中house为什么不加s

in their house 中house为什么不加s a dove is a bird.you may have seen doves.some doves are white and some are grey.they like corn.they don't like meat.a dove likes to live in a bird-house.many people like doves.they make a home for their doves near a window.doves fly out of their hous in their house house为什么不加s People will have computers in their house.改为同义句 The villagers,__had been damaged in the big fire last night,is a small hospital.选啥whose all houses 还是 all of whose houses.本来应该是all their houses,那现在在从句中就应该换为all whose houses.为什么答案是all of whose hous house是单数吗为什么in their house不加s 歌词中有one...in the house,two...in the house,three..in the house 英文歌 They were busy carrying earth in their mouths to stop up the door of their house. a pair of earth villagers in their field with their house on wheels是啥意思 改病句：in the evening in febrary they had different party in their friend is house. The tree is behind the hous.改为同义句The house is()()()the tree 加拿大10年级数学题一道数学题..怎么也想不出来了A census taker came to a house with no one home.He asked a neighbour the ages of the three inhabitants and was told the product of their ages is 252,the sum of their ages is the hous everyone in the house were in their beds 如果把THEIR换成HIS,那么是不是WERE也要换成WAS 英语翻译Andre Raffay has a problem.He needs a nice,large house in the city but he doesn’t have enough money to buy one.Every morning Andre sits in a cafe shop and reads newspapers.When he finds a house he is interested in,he telephones the hous The people in the village buy their stamps in Colin and Sarah's house什么意思 Wear trousers in their house翻译这个句子：MR.wilson talks a lot but mrs.wilson wears trouserous in their house 《今天我要嫁给你》中jolin in the house dt in the house 的in the house Newcomer at the zoo:a pair of earth villagers in their field with their house on wheels.求翻译!