What does the number of bonds tell you about the oxygen atoms?

Because hydrogen atoms only have one valence electron to couple, they only form one covalent bond. Because oxygen atoms have 6 valence electrons, they form two covalent bonds.

Explanation:

i believe the answer is: b. mr. head had a long, tube-like face with a rounded open jaw and a short depressed nose.

this is because in the un-revised sentence it said that mr. heads face was long and tube-like, and he had a rounded open jaw. this is not a very grammatically correct because of how it seems to drag on with the and, replaced with, with, makes it sound more fluent in the description.