D. He developed a theory on the extinction of dinosaurs
The parts that wear out on the brakes are the pads that in Spanish is call la pastilla
Clock: reloj. half past: medio de. to/before: antes de. quarter past: y cuarto.
I believe the correct answer is C because it is the only one that sounds iffy as it contains present and past tense. Answer choices A and B sound fine. Hope this helps!
