句子训练。(10分)
按要求完成下面的句子，每空一词。
That is my aunt. (改为一般疑问句)
_______ _______ your aunt?
Is she your sister (作肯定回答)
________, ________ is.
This is an English map. (改为复数句)
________ ________ English maps.
They’re my good friends. (对画线部分提问)
________ ________ they?
His father and mother are in Shanghai now. (改为同义句)
His ________ ________ in Shanghai now.
I find it difficult to learn physics．（变成复合句）
I find to learn physics．
Now，more and more foreigners speak Chinese well．（变为被动语态）
Now，Chinese by more and more foreigners well．
It took him one and a half hours to finish the task．（变成同义句）
He one and a half hours the task．
China has a population of 1.37billion．（对划线部分提问）
the population of China？
She must be a doctor， ？（完成反意疑问句）