What are 4 things to look for when you are proofreading?

If a text made the claim that act iv was the most important act in the entire play, what evidence could you find to prove the accuracy of that claim? list one piece of evidence from the text to support that claim.

One of the author's purposes in the code book is to explain different types of codebreaking to his readers. which line best demonstrates this purpose? a theoretical breakthrough would be a fundamentally new way of finding alice's private key mathematicians have been studying factoring for centuries, and modern factoring techniques are not significantly better than ancient techniques a more recent development is the so-called tempest attack, which aims to detect the electromagnetic signals emitted in a computer's display unit if scientists could build a quantum computer, it would be able to perform calculations with enormous speed mark this and return save and exit next submit

Iwanna listen to music but i have a migraine. are there any songs that would be good for me to listen to that wont make the migraine worse