We expected it to cost much.
问题描述:
We expected it to cost much.
这句中不定式to cost much作什么成分?
答
宾语补语
I ask you to help my English.
跟这个句子差不多,we主语expected 谓语it宾语,后边的当然是宾语补语,补充说明 expected it的结果