I did not receive reply to my previous question. So I am repeating it again:
If a sentence ends with etc., should there be two dots (.) or just one dot? For example: I like several fruits, e.g., mango, banana, guava etc..
If plural of an abbreviation is to be used, should 's or a simple s be used? For example, which one is correct: PC's or PCs (PC for personal computer), I have five PC's or I have five PCs. Which one is correct?