there are (two) balls on the floor划线提问

there are some 还是there are two there are two bears o-- there school,there,ball,many,games,in,are,your(?) 英译汉：Also there are some boys playing ball games. how many ball pens are there in the pencil-box?为什么中间要加are there? 英文翻译：There are same two.和 There are fifty. 英语阅读100分阅读理解（十九）There are forty-two students in our class.There are also two American boys.They are Jack and Mike.They are our good friends.They like watching TV,but they don’t like playing basket-ball .They often go to sc 英语阅读题：全对100分阅读理解（十）There are forty-two students in our class.There are also two American boys.They are Jack and Mike.They are our good friends.They like watching TV,but they don’t like playing basket-ball .They often 英语阅读题：全对100分阅读理解（十九）There are forty-two students in our class. There are also two American boys. They are Jack and Mike. They are our good friends. They like watching TV, but they don’t like playing basket-ball .Th 求教1 、There are two boys of Tom's there 中的 of+物主代词 是不是一个介词短语2、There is only one ball pen in the pencil box.中 ball是定语,the pencil box也是定语吗?我的疑问是：为什么定语不是in the pencil box? there are two kinds of memory there are two chairs and a desk There are two farmers ( ) the apple trees There are two pictures ) the wall Are there d_ between the two pictures? There are four windows ( )the two doors. there are two maps on the back there are two p______ of good news.