Tom ___better than to ask Dick for help .

Tom ___better than to ask Dick for help . 问英文语法题Tom ___better than to ask Dick for help.A should have 英语翻译：Tom should have known better than to ask Dick for help. does Tom always ask me for help why don't you ask for help,rather than trying to do it on yo why don\'t you ask for help,rather than trying to一句中为什么用tryi she should have known better than to ask jim for help. I am writing to ask for help ask sb for help有同义短语ask for sb to help吗? Ask for your help. Ask me for help 请问：ask for help