what was nick doing there mother didn't know.（改为含if引导的条件状语复合

what was nick doing there mother didn't know.（改为含if引导的条件状语复合 What was Nick doing there?Mother didn't know.(改为含有宾语从句的复合句) don't drive after drinking .it is dangerous.改为if引导的条件状语从句 1、Don't drive after drinking.It is dangerous.(改为If引导的条件状语从句) Work hard,or you'll fall behind others.(改为含if引导的条件状语从句的复合句） I didn't know what there was to say regardless. I didn't know what--------then.A.he was doing B.was he doing 求 if引导的条件状语从句 if引导的条件状语从句例句 if引导的条件状语从句 "if"引导的条件状语从句构成 if引导条件状语从句的用法