企源知识库

please / if / let us know / there is / that we / anything further /can do
【正确答案】：Please let us know if there is anything further that we can do.
【题目解析】：句意为如果我们还能做什么，请告诉我们。please意为“请”，其后要接动词原形；if意为“如果”，引导条件状语从句；that we can do做后置定语，修饰anything further。