It happens that I am free today.的同义句是什么?

It happens that I am free today.的同义句是什么? I'm free today的同义句是什么 I am free every day,but I am not free today.（改为同义句） i am not free today同义句I have—— ——today It happens that引导的是什么从句? I am not free today i am fine的同义句是什么 I’m free book.的同义句是什么? I don't have any free time today的同义句 That's the way it happens.这句是什么结构? i like watching tv when i am free的同义句 I am free this Sunday aftermoon同义句