(1)big snapping turtles don't get to weigh so much without eating a lot of food. (2)here's how they do it: (3)most snapping turtles float, or lie motionless on the bottom of a pond or river. ( a fish, frog, or other prey swims close enough, the turtle snaps very fast with powerful jaws.
options: a. also b. moreover c. before d. when

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.

the correct answer is a "it describes nora and mrs. linde's relationship". opcions b and d are not related to the content of the passage in any way. option c could be appropiate but it does not fully capture the effect of the dialogue, while option a is quite appropiate, since the dialogue not only exemplifies the relationship between the characters, but it also captures the effect in the excerpt. we get to know that mrs linde bosses around and already knows nora.

the answer is a (apex)