Question

correct the text by inserting two commas. (note: in this skill, serial commas are not optional.) celine saved cardboard boxes and toilet paper rolls and much to my surprise used them to build an entire cityscape.

Explanation:

To correct the text, we need to insert commas to clarify the structure. The phrase "much to my surprise" is an interjection that should be set off with commas. Also, we need to separate the two main parts of the sentence. So we insert a comma after "rolls" and a comma after "surprise".

Answer:

Celine saved cardboard boxes and toilet paper rolls, and, much to my surprise, used them to build an entire cityscape.