My sister is doing her homework.Please make noise.A．not B．can't C．don't D．didn't

17、My sister is doing some in the study . My sister and I_____.A.am doing my homework B.is doing my homework C.are doing our homework D.are doing their homework my sister used to h ----- doing chores at home but now she likes to do them填h打头的 she is my sister. My sister is a my sister is a My sister is a my sister is my sister is my sister is zhangjing is my sister. Sister doing homework the my is her in room连词成句 My parents'?is my sister? Lily is my sister.I have()sister what is your sister and you doing?What is your sister and you doing?My sister and I am watching TVDid you have sisters or brothers?Yes,I have句子是否正确,如有错误请帮我改一下 作文My sister is room my sister is good . maths （this）is my sister