question: gently push down the retinal explant with forceps if it floats to the top.
Capitalize this past sentence correctly.
A: Gently push down the retinal explant with forceps if it floats to the top.

question: self-locking nuts of iron or steel other than stainless (excl. such articles turned from bars, rods, profiles, or wire, of solid section, with an inside diameter of <= 6 mm)
Capitalize this past sentence correctly.
A: Self-locking nuts of iron or steel other than stainless (excl. such articles turned from bars, rods, profiles, or wire, of solid section, with an inside diameter of <= 6 mm)

question: notice the amazing patina.
Capitalize this past sentence correctly.
A: Notice the amazing patina.