单项选择
11. -- they________ about super voice girl. let's join them. -- ok. let's go. a. talk b. talked c. are talking d. have talked
答：9.can you hand me the book ______ the other day? a. about which you talked 介词后面一...详情>>
答：B 被动语态，be found to do. A中的made与found均为过去分词，冲突！详情>>
问：hArd work 和hArd--working有什么区别
答：一个是名词 一个是形容词撒详情>>
