please remember _____ the letter for me .I forget _______ it his _英语解答

please remember _____ the letter for me .I forget _______ it his morning.
A.to post,to post B.to post ,posting
选哪个？为什么？

人气：447 ℃　时间：2019-12-12 05:33:01

解答

A
remember to do 表示还没做,记得要去做
remember doing 表示已经做了,记得曾经做过