Use Appendix 1 to complete the paragraph with: at, with, on,

Use Appendix 1 to complete the paragraph with: at, with, on, about. Use the phrases to make sentences about yourself and your friends.
My best friend, John, is very good l) gt; at solving other peoples problems, but very bad z)......finding solutions for his owin problem. For instance, he tells mе to be careful 3)......my money but then he is careless 4)......his own. Hes been 5)......the idea of other people saving money for a rainy day but hes not so enthusiastic 6)......doing it himself.
gt; Im very good at giving advice, but Im very bad at receiving it.