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．
句型转换
They had a good time in the park yesterday．(改为同义句)
They________ ________in the park yesterday．
句型转换
（1）Could you please take out the rubbish？(改为否定句)
Could you please________ ________out the rubbish？
（2）—Could I have some bread？(作肯定回答)
—________，________．
（3）She will come back in two weeks．(对画线部分提问)
________ ________will she come back？
（4）Our dog welcomed me when I came home from school．(对画线部分提问)
________ ________your dog welcome you？
（5）Both she and I are going hiking this afternoon．(改为否定句)
________she________I________going hiking this afternoon．
同义句转换
（1）You really have to take care of the pet when we are away．
You really have to________ ________the pet when we are away．
（2）She agreed to help me learn cooking．
She agreed to help me________cooking．
（3）The school will provide free textbooks for us．
The school will provide________ ________free textbooks．
（4）To swim in the river is very dangerous．
________very dangerous________ ________in the river．
（5）I arrived at the theatre early so that I could get a good seat．
I arrived at the theatre early________ ________ ________get a good seat．
The student of Class Three have already cleaned their classroom.( 改为否定句)
The student of Class Three ______ cleaned their classroom . Her grandfather has been dead since2007 .（对画线部分提问）
________ ______ has her grandfather been dead?The film began about 20 minutes ago．You are late．(改为同义句)
The film has ________ ________ for about 20 minutes．You are late.我们应该循环利用塑料袋而不是扔掉它们。(完成译句)
We should reuse plastic bags throwing them away.
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