I wasn`t given the sales price for three items.
As I was distracted by my two small children,
I wasn`t able to see the mistake
at the time_____________
I do not live in the area, I have sent you a copy
(a) if (b) after (c)when (b)Because
of the receipt in the hope that you will reimburse my credit card
여기에 if는 현재동사, 조동사 들어갈것같아서 못들어갈것같고..
정답을 지금 모르는상태라서 after가 맞는지 because가 맞을지 잘 모르겠습니다.
어느걸 넣던 해석이 되가지고 ㅜㅜ 풀이부탁드립니다.