Listen, read and learn.
(Klausies, lasi un mācies!)

tongue – [tʌŋ] – mēle

tooth – [tuːθ] – zobs

teeth – [tiːθ] – zobi

lips – [lɪps] – lūpas

chin – [tʃɪn] – zods

cheek – [tʃiːk] – vaigs
Piemērs:
I clean my teeth twice a day. — Es tīru zobus divas reizes dienā.
Doctor: 'Please, show your tongue.' — Ārsts: "Parādi savu mēli, lūdzu!"