Read this excerpt from "the bear."

how well he could ride! what grace there was in his figure when he pulled at the reins with all his strenth!
who is popova referring to in this quote?

luka
grigory smirnov
her dead husband
toby, a favorite horse

She was referring to her dead husband.

Explanation:

You can see that she was talking about him because she said he could ride well, which is past tense. Also Luka is butler so she wouldn't speak of him in such a lovingly tone, she hated Grigory Smirnov at that time and Toby can't ride himself, we hope. I also recently read this story.

type of error:

the error in the sentence is a "dangling modifier". a dangling modifier is a phrase, word or clause that "dangles" because there is not target to modify. in this case, "after mopping the floor" is the dangling modifier since it has no word to modify. the noun "house" cannot mop the floor; therefore there is a mistake in the writing of the sentence.

the correct answer would be:  

a. adverb phrase