73.

Answer and Explanation

Your Answer is

Correct Answer is C

Explanation

even guides the adverbial, the underlined part should be the subject of the sentence, here is the sentence pattern of there be, so item C is correct.

Item A: their is "their" and cannot be the subject, wrong.

Item B: Make the sentence have two predicates are/is, wrong.

Item D: There is no turning relationship before and after, wrong.