7.

Answer and Explanation

Your Answer is

Correct Answer is B

Explanation

from a distance is a sentence interjection, separated by double commas. This question is solved by the method of elimination, from a distance is a fixed collocation, there is no symbol in the middle, and D is wrong.

Like a giant shell as a whole, item C is wrong.

A item from a distance like a giant shell is placed at the end of the sentence as a whole, and it can only be a sentence adverbial. There should be no comma at the end of the sentence, so item A is wrong.

Note: If there is an unsigned option for this question, it is also acceptable.