I don't know what I can do 是简单句还是并列句还是复合句?

I don't know what I can do 是简单句还是并列句还是复合句? 同义句:I don't know what I can do .转换：I don't know what ( ) ( ) 判断下面是简单句还是复合句还是并列句? 句式转换1、I don’t know what I can do next.（改为简单句）2、They would li 将下列句子改写成简单句：1、I don't know what I can do next. I don't know what I should do next.(改为简单句） I don't know( ) ( 将复合句变成简单句 I don't know when I can get the ticket to the movi 判断下列句子是简单句、并列句还是复合句： 请问下面句子是简单句 复合句还是并列句? 请问下面句子是简单句、复合句还是并列句? I don't know what can I do tomorrow.（改为同义句） I don't know ___ 把复合句改成简单句：1.i don't know when i will come back.→i don't know