Each question is divided into four parts in which one part contains the error. Choose the incorrect part as your answer. If the sentence doesn’t contain any error, choose “No Error” as your answer choice.
I'm sorry, but (A)/ I can't go with you (B)/ because I have (C)/ another appointments. (D)/ No Error (E).

Correct option is D

The error in the sentence is in part (D). The word "appointments" should be corrected to "appointment" because "another" implies that there is only one additional appointment, making it singular. So, the sentence should use the singular form "appointment" to match the intended meaning.