I think the sentence is grammatically correct when written as "Los peces no dormen."
"Los peces no dormen." means "Fish do not sleep." which in my opinion is grammatically correct.
Answer:
The capital is San Salvador
Explanation:
Hope this helps!!
Sentence: I like the green skirt but my parents ________ the blue dress?
A) prefer
B) think
C) like
D) i want
The correct answer is.......C, like