couldn't wait to do 我是英语老师,我们初二的教材是这么写的你说的是couldn't help doing吧,禁不住做某事的意思
can not wait to do例如I can't wait to hear the news. 我迫不及待地想听到这个消息。
应该是can not wait to do wait后面一般是不加doing的电脑上的资料不能全信的~~
一定是can't wait to do
后者