I prefer watching TV to doing homework.(改为同义句）

I prefer watching TV to doing homework.(改为同义句）
I prefer watching TV to doing homework.(改为同义句）

I prefer watching TV to doing homework.(改为同义句）
I like watching TV more than doing homework.

I prefer to watch TV rather than do homework,

I would rather watch TV not to doing homework.

prefer doing to doing=prefer to do rather than do.
所以I prefer to watch TV rather than do homework这句比较好。

I like watching tv rather than doig homework