精选优质文档-倾情为你奉上人教版九年级英语第四单元知识点总结unit 4 I used to be afraid of the dark.一单词humorous silent helpful from time to time score background interview Asian deal deal with shyness dare crowd ton private guard require European African British speech public in public ant insect seldom influence absent fail examination boarding in person exactly pride take pride in proud be proud of general introductionI used to be afraid of the dark.I didnt use to be afraid of the dark.Did you use to be