Послушай и прочитай.
1) [θ] $\mathbf{\text{th}}$ink, $\mathbf{\text{th}}$ank you, $\mathbf{\text{th}}$ree.
2) [ð] $\mathbf{\text{th}}$ey, $\mathbf{\text{th}}$e, $\mathbf{\text{th}}$is, $\mathbf{\text{th}}$at.
3) [ʃ] $\mathbf{\text{sh}}$e, $\mathbf{\text{sh}}$ort, fi$\mathbf{\text{sh}}$, $\mathbf{\text{sh}}$irt.
4) [k] bla$\mathbf{\text{ck}}$, clo$\mathbf{\text{ck}}$, sti$\mathbf{\text{ck}}$, so$\mathbf{\text{ck}}$.