Can you put quotation marks inside quotation marks?

What does “.com" stand for? commercialcommerce commutingcommunication

Which sentence uses the past tense of to study correctly? a. mark is studying for his math test with margie. b. mark will study for his math test with margie. c. mark studied for his math test with margie.

This is the political, social, cultural, and economic 'time and place' surrounding the creation of a literary text.