I know the general rule is to use "a" if the word following starts with a consonant, and "an" if it starts with a vowel. I found this page that lists some exceptions: ...
I just read an article from a Chinese website for English teaching which mentions that point. For instance, one can't say: "I can play quite a few musical instruments, for example, the flute, the ...
Possible Duplicate: When “etc.” is at the end of a phrase, do you place a period after it? What is the proper way to end a sentence with "etc."? Should there be two periods or ...
Possible Duplicate: “a” or “an” for words that don't start with vowels but sound like they're starting with a vowel Do you use “a” or “an” before acronyms? Does one use 'a' or ...
I.e. is used when we would like to use a situation as a kind of clarification. Suppose I was to write something like this: Nano-boxes are used in medical science i.e. cancer treatment, where ...
In an answer to another question, steven_desu argued that it was “technically incorrect” to use the word “e-mail” or “email” as a verb because it stands for “electronic mail.” I do not argue whether ...