Le is for he or she, leen is for like students, classes, they, and ect.
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:
heres the link of the answer
boldniwally.com
D all of them are correct.
I think its:
-Yo marco el numero con los dedos
-I didnt get this one
-Mi amiga vive lejos. Hago la llamada de larga distancia.
-Didnt get this one either
-Yo termino la conversacion y apago el auricular
-Mi amiga no vive en mi ciudad. Ella vive muy lejos en Europa. Para llamarla necesito hacer una llamada de larga distancia