改为同义句。
I am sure that I can work it out however hard the problem is．
I am sure that I can work it out________ ________ ________hard the problem is．
What a clean classroom it is! （改为感叹句）
the classroom is！
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．