2. (A) After we were waiting in line (B) for three hours, (C) much toour disgust, the tickets had been sold out (D) when we reached thewindow.

(A) This part is correct. The part (C) is incorrect.

(B) This part is correct. The part (C) is incorrect.

(C) You are Right. “After we were waiting in linefor three hours, the tickets had, much to our disgust, been sold outwhen we reached the window.” Avoid squinting constructions—that is, modifiersthat are so placed that the reader cannot tell whether they are modifying thewords immediately preceding the construction or the words immediately followingthe construction. As the sentence initially reads, we don’t know whether muchto our disgust modifies after we were waiting in line for three hours orthe tickets had been sold out when we reached the window.

(D) This part is correct. The part (C) is incorrect.