I'm doing my homework now.(用be going to的形式改寫句子）
I 'm 【going to do】 my homework tomorrow .
They're going to the zoo this afternoon(改為否定句）
【They aren't going to the zoo this afternoon】
What other people are going to Shanghai with you?(改為同義句）
【W(wǎng)ho are going to Shanghai with you?】
My sister is going to have a piano lesson on Sunday?(對 have a piano lesson 提問）
【W(wǎng)hat is my sister going to do on Sunday?】
Maria often helps her mother do the housework at home.(改為同義句）
Maria often【helps】her mother【with】the housework at home.