你最好的朋友没有邀请你参加他的聚会,英语作文

　　i ,xx,I'm sorry to tell you that I may fail to attend your birthday party ,for I got something to handle that day .You know that the final exam is approaching right ,I have a hard time focusing myself to study ,so I guess I may just have to stay at home and preparing for my exam .What's more ,my mum went out and left my little brother at home ,I have to take care of him .What's worse is that my cloth for party has been dirty and kept me from going ,I knew you've been longing for me to go ,but I just have to say sorry ,have a nice day and wish you happy birthday !