Read the paragraph. the flowing skirts! the sharp jackets! the lacy details! as the play began, i felt so proud. my friend johan and i all the costumes for our school’s spring production. one day, i hoped to attend art school and work on musicals on broadway. to see my creations worn in front of cheering new york city audiences was my dream! for tonight, though, the smiling faces in the north shore high auditorium would certainly suffice! which best fits in the blank? were designing design had designed would design

"Had designed" is the best answer to complete the sentence.  Since it states that the play has already began we can conclude that designing the costumes is in the past.

the third one is correct

(D) previous Actuarian.

Explanation:

The word "predecessor" refers to someone who comes before the present or current one. In other words, the person who came before us, be it in a job or any work is the predecessor.

In the given context, the phrase "previous Actuarian" helps us understand the meaning of "predecessor". This is because the word "pre" is present in both "predecessor" and "previous", referring to the prefix "pre" which means "before".

Thus, the correct answer is option D.