/k/:look, account, costume, christmas, school, close, kitchen, culture

/g/:Các từ còn lại 

\begin{array}{|c|c|c|}\hline \text{/k/:}&\text{look}&\text{school}&\text{close}&\text{account}&\text{package}&\text{costume}&\text{Christmas}&\text{kitchen}&\text{cucumber}&\text{culture}\\\hline\text{/g/:}&\text{group}&\text{groom}&\text{girl}&\text{green}&\text{garden}&\text{goose}&\text{goat}&\text{gate}&\text{gather}&\text{guard}\\\hline\end{array} 

@kieuank.