Hello. You forgot the answer options. The options are:
a) insert comma before and after "that is"
b) change the spelling of straight to strait
c) remove comma after high school
c) change may seem to seemed
Answer:
a) insert comma before and after "that is"
Explanation:
The expression "that is" is an auxiliary sentence, which serves as an introduction to the sentence presented earlier. When this occurs, the auxiliary sentence must be separated from the sentence with commas. Thus, we can say that to present a grammatically correct sentence it would be necessary to insert a comma before and another comma after the expression "that is".