Someone must warn him of the difficulties.是主谓宾还是主谓宾宾补呢?如何理解of the difficulties是什么成分呢?Salmon farmers are warning of the severe crisis facing the industry.是不是主谓结构呢?
...on的解释a standard or principle by which sth is judged,or with the help of which a decision is made (评判或作决定的)标准,准则,原则这句话里or with the help of which a decision is made中的which语法成分怎么分析?这是of which引导的定语从句吗?
原句:The practice provides people with a new interest, animal friendships
and a continuous supply of fresh eggs.老师,这里:a continuous supply of fresh eggs 为什么不是the continuous
supply of fresh eggs,这里用了a是涉及什么语法了吗?
他没有告诉过我关于他朋友的事情He didn't tell me any of his friends.He didn't tell me anything of his friends.He didn't tell me any about his friends.He didn't tell me anything about his friends.这四句都对吗?