People will have robots at home in 20 years．（对划线部分提间）
will people have robots at home？
Whose schoolbag is on the desk？Father asked．（合并为含有宾语从句的复合句）
Father asked schoolbag on the desk．
Jeff asked his students， "Do you know it is important to protect the earth？" （改为间接引语）
Jeff asked his students they it is important to protect the earth．
The teachers are still taking about where they will hold the concert． （改为简单句）
The teachers are still talking about hold the concert．
What a clean classroom it is! （改为感叹句）
the classroom is！
The waiter took away the plates after we finished eating． （改为被动语态）
The plates away by the waiter after we finished eating．
The foreigners visited the Great Wall of China yesterday．（改为一般疑问句）
the foreigners the Great Wall of China yesterday？
My sister isn't old enough to dress herself．（改为同义句）
My sister is young she can't dress herself．
I lent the bike to Sam a few days ago．（改为同义句）
Sam the bike me a few days ago．
The little girl put her things on the floor．（改为一般疑问句）
the little girl her things on the floor？
President Xi Jinping asks every Chinese to continue working hard for happy lives． （ 改为同义句） President Xi Jinping asks every Chinese to working hard for happy lives．
Li Lei does the housework every day．（改为否定句）
Li Lei the housework every day．
All the students have to pay attention to the pronunciation of each word． （ 变为被动语态 ） Attention to be to the pronunciation of each word．
You shouldn't shout back to your parents! （ 改为祈使句 ）
back to your parents!
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