Why did twain complete a lecture tour in 1895-1896?

What does the word subordinate mean in this sentence? the office manager spoke to her subordinate in a cordial tone.

Which situation might occur in a conflict of character versus nature? a. a society disapproves of a character’s behavior. b. a character suffers from a serious illness and eventually dies. c. two characters argue over a difference of opinion. d. a character is unable to decide on his opinion of another character.

What happens to lovers when there are decreased levels of serotonin in the brain?