题目内容：

there were too many words,expressions and many other things to remember.And even if you know___,you can't use them correctly and exactly.A.how to write them B.how to write

优质解答

此题应选A答案.And even if you know___,you can't use them correctly and exactly.逗号隔开的前半部分是even if 引导的让步状语从句,use them和write them在句子中的成分角色应该是并列一样的