Listen and read.
[ɑ:] b$\textbf{a}$th, b$\textbf{a}$throom, c$\textbf{ar}$pet, $\textbf{ar}$m, $\textbf{ar}$mchair
[æ] l$\textbf{a}$mp, p$\textbf{a}$ntry, bl$\textbf{a}$ck, fl$\textbf{a}$t
[ɔ:] fl$\textbf{oor}$, d$\textbf{oor}$
[aɪə] f$\textbf{ire}$, f$\textbf{ire}$place