it is more adj.to do than to do 在这里为什么不可以用doing?

it is more adj.to do than to do 在这里为什么不可以用doing? more than+adj to do sth It is adj to do与doing的区别是什么? it's adj+to do还是doing? it is adj.to do sth.it is adj.doing sth.有什么区别 It is adj to do sth/It is adj doing sth两个语法句式都对吗? sth. is more ...than to do 还是doing 为什么i have trouble doing 宾补是doing 不可以用to do 而且这doing是宾补吗? I have_________homework to do.这里为什么不可以填写many? it is adj to do句子成分分析 it is+adj+to do sth.意思 It is+adj/n+to do