Listen and read.
[əʊ] r$\mathbf{\text{o}}$ller skates, h$\mathbf{\text{o}}$me, n$\mathbf{\text{o}}$, g$\mathbf{\text{o}}$
[ʌ] p$\mathbf{\text{u}}$zzle, $\mathbf{\text{o}}$ne, s$\mathbf{\text{u}}$mmer, m$\mathbf{\text{o}}$nth, M$\mathbf{\text{o}}$nday, S$\mathbf{\text{u}}$nday
[eɪ] sk$\mathbf{\text{a}}$tes, g$\mathbf{\text{a}}$me, gr$\mathbf{\text{ea}}$t, birthd$\mathbf{\text{ay}}$, $\mathbf{\text{A}}$pril, M$\mathbf{\text{ay}}$
[e] t$\mathbf{\text{e}}$ddy bear, s$\mathbf{\text{e}}$cond, t$\mathbf{\text{e}}$nth, F$\mathbf{\text{e}}$bruary, S$\mathbf{\text{e}}$pt$\mathbf{\text{e}}$mber