What is the correct mla in text citation for an author not named in a signal phrase

What conclusion can be drawn about sea walls?

Which punctuation mark would best fill in the blanks in the following sentence in the past year i visited denver, colorado portland oregon and seattle washington

Choose the letter of the word that most clearly expresses the tone in each passage. if you are unfamiliar with any of the words, look them up before you select the correct answer. we have come together this afternoon to mourn the deaths of sixteen miners—our friends and neighbors—who were trapped by fire yesterday, deep below the earth. they lived bravely and they died too soon, leaving behind grieving wives and bewildered children. we bid them a final farewell. question 1 options: forgiving sorrowful angry amused