Please capitalize where necessary: the ordinary operations of algebra suffice to resolve problems in the theory of curves.
A: The ordinary operations of algebra suffice to resolve problems in the theory of curves.

Q: a manufacturer of 3x5 watts 24 watt at zhongshan karnar lighting & electron factory.

A: A manufacturer of 3x5 watts 24 watt at zhongshan karnar lighting & electron factory.

Q: we proudly offer best price guarantee to our classic design carnelian donuts earrings.this classic design carnelian donuts earrings is offered at the lowest price on the market with premium quality.now it's best chance to make the discount gemstone earrings deals with bjbead.com.
A: We proudly offer BEST price guarantee to our Classic Design Carnelian Donuts Earrings.This Classic Design Carnelian Donuts Earrings is offered at the LOWEST price on the market with premium quality.NOW it's best chance to make the discount gemstone earrings deals with Bjbead.com.

Problem: the purity class of the oil used is continuously monitored and the oil tank is cleaned out before and after the in-house tests.
Can you repeat this sentence, but capitalize it?
Answer: The purity class of the oil used is continuously monitored and the oil tank is cleaned out before and after the in-house tests.

Text: the helmet is made of abs plastic and are not bulletproof.

Correct capitalization: The helmet is made of ABS plastic and are not bulletproof.

Text: what is the treatment for sudden cardiac arrest?

Correct capitalization:
What is the treatment for sudden cardiac arrest?