Listen, repeat and read.
[æ] – h$\mathbf{\text{a}}$ppen, n$\mathbf{\text{a}}$tional, c$\mathbf{\text{a}}$ndidate, ch$\mathbf{\text{a}}$rity
[eɪ] − d$\mathbf{\text{a}}$ngerous, pl$\mathbf{\text{ay}}$, st$\mathbf{\text{ay}}$, $\mathbf{\text{ei}}$ght, b$\mathbf{\text{a}}$sed
[ʌ] − j$\mathbf{\text{u}}$st, j$\mathbf{\text{u}}$ngle, ad$\mathbf{\text{u}}$lt, $\mathbf{\text{o}}$thers, br$\mathbf{\text{o}}$thers
[ɑ:] − st$\mathbf{\text{ar}}$t, st$\mathbf{\text{ar}}$, p$\mathbf{\text{ar}}$t, ex$\mathbf{\text{a}}$mple, kar$\mathbf{\text{a}}$te
[ɔ:] − aw$\mathbf{\text{ar}}$d, perf$\mathbf{\text{or}}$mance, astron$\mathbf{\text{au}}$t, supp$\mathbf{\text{or}}$ter