Based on the given code language, we can deduce the code for 'drink' by observing the common code in the sentences where 'drink' appears:
From the first sentence, 'drink hot beverage' is written as 'la mi wu'.
From the third sentence, 'cold sweet drink' is written as 'te gi la'.
Comparing these two sentences, we see that 'drink' is represented by the code 'la' in both cases.
So, the code for 'drink' in this code language is:
(A) la