1.What school rules should be changed?Do you think?(合并成一个句子)
What school rules _______ _______ _______ should be changed?
2.I will have a chance of achieving my dream only then.(同义句）
Only then ______ _____ ______ a chance of achieving my dream.
3.He needs to spend time on his homework ,_______we don't allow him practice every day.(合并成一个句子）
He needs to spend time on his homework,_________we won't allow him to practice every day.