you know that certain tests are coming up

you know that certain tests are coming up 英语翻译Dear Tony,I am glad to know that you are coming to China i know i was wrong i know that for certain you know we belon Big day coming up la how are you Are you coming,or not?___________ your mind up. Let me know whether you are coming.是什么从句?Let me know if you What are you up to with that? When will I know that you are you should know what you are up to do 有语法错误吗?what you are up I also have a certain strong feeling that you are also the a 分析句子成分there are certain subjects that you would assume kids I know,I was trying to tell you that I was coming.