在"thank you fur telling me about your day."这句话中,"tell"为什么要加"ing"?

在thank you fur telling me about your day.这句话中,tell为什么要加ing? 在thank you fur telling me about your day.这句话中,tell为什么要加ing?急... 怎样升级?you tell me?Thank you! Thank you for( )(tell)me about it 中美关系史,Tell me ``Thank you! who can tell me thank you 怎么安装?tell me thank you can you tell me how____(iron)this kind of fur coat? thank you .can you tell me who are you?中文 在哪?thank you 雪遇热后为何会融化?Please tell me.Thank you. what is love canyou tell me?thank you noly time will tell.如题 thank you Thank you for _____ 【tell】 me so much. thank you for tell me the good news 改错 thank you for ____(tell)me about your day thank you for( )(tell)me about the Mid-Autumn Festival Er,thank you for tell me so much!