书名：寂天 阅读满分2
页数：p.128 149题
题目：
You will find an invoice for the balance in the attached file. We are sorry fo
r
any inconvenience this may cause, and we hope that you will continue be an End
er Car Rental customer.
Should you have questions about the charges, or any concerns relating to
_______, please do not hesitate to call us.
(A) Yours
(B) Ones
(C) Them
(D) It
疑问：为什么是C而不是D