请根据中文提示、英文释义或句意，写出句中所缺单词，使句子通顺。
May is my __________(忠实的)friend and I often go to her for help.
Tom, don't have so much cold drink. You should look after _______(你自己) well.
Tom is very ____________(幽默), he can make us laugh.
Are you ___________ (愿意) to help us with our homework?
I hope I can go to the USA this___________(autumn的美式英语).