<p>can you guys tell me what is wrong with this sentence?</p>
<p>Before he found his current job, Edward had spent several miserable years working in a large commercial bakery where the expression of outrageously offensive opinions were as common as saying hello. No error</p>
<p>Ok I think I figured out why “were” is wrong. “Were” is used for plurals but that word was referring to “the expression” (singular) so it should be “was.” </p>