they are my sister and brother and they can help me study .这个句子通顺么?求改错。

My sister( )flying a kite with my father.They are very happy. They are my parents,my sister,my brother and I. how many ( )are there in your family?Four.they are my father,my mother,my sister and i.A.men B.women C.people D.children Hi Are they your parents?Mum,he is my classmate,Jack.Where is he?who is your sister?A Hi Are they your parents?Mum,he is my classmate,Jack.Where is he?who is your sister?Are they your friends or sisters?BHe is in the classroom.Helen is my sister.They You are my sister Whose bananas are these?They are my sister’s.Bananas are ＿＿＿favorite food.A.her’s B.she’s C.her D.she 英语连词组句选择题1Are they ()books?A.my sister's B.my sister C.my sisters2()a river in the park?A.Are there B.Is there C.There is3-()any snow on the tree -Yes,()A.Is there;it is B.Are there;they areC.Is there;they are选择1there Is forest What are those?A.They are notebooks B.It is a notebook C.He is a boy D.She is my sister 选哪个? —Who are these girls?—They are _____.—Who are these girls?—They are _____.[ ]A.my friend B.my friends C.her sister D.his brotllers ①Those are two_____.A.girl B.girls C.sister D.br①Those are two_____.A.girl B.girls C.sister D.brother②_____are my parents and they are teachers.A.He B.She C.This D.These ----- my sister ----- my brother is able to ride a bike,however they are going to buy one.A neither nor B either or C both and He is my brother.they are my sister 观察句子,为什么he后面用is而they后面用are? They are my parents,my sister,my brother and I.还是They are my parents,my sisiter,my brother and me.对 They are the nice gift from my sister on my eleventh birthday 求翻译 They are my uncles.改为否定句 This is not my sister.缩句 This is my faily.They are my _____填sister的适当形式 My brother and sister are not in the same school.They are in ____ schools. 1 these are your sister 改成复数怎么改 2 they are my familys