China is the greatest country in the world．（改为同义句）
China is greater than country in the world．
People will have robots at home in 20 years．（对划线部分提间）
will people have robots at home？
He has some good ideas．（改为否定句）
He have good ideas．
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．
Qomolangma（珠穆朗玛） is higher than any other mountain in the world．（改为同义句）
Qomolangma is mountain in the world．
You shouldn't tell lies to others and learn to be honest! （改为祈使句）
lies to others and learn to be honest!
The foreigners visited the Great Wall of China yesterday．（改为一般疑问句）
the foreigners the Great Wall of China yesterday？
He said，"I am living with a British family now．"（改为间接引语）
He said that was living with a British family ．
I lent the bike to Sam a few days ago．（改为同义句）
Sam the bike me a few days ago．
You should n't walk across the road when the light is red!（改为祈使句）
across the road when the light is red！
Twenty foreign students visited our school yesterday．（改为一般疑问句）
twenty foreign students our school yesterday？
People drink Chinese tea all over the world．（改为被动语态）
Chinese tea all over the world．
My sister isn't old enough to dress herself．（改为同义句）
My sister is young she can't dress herself．
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