Thosewhoarepotentialcustomerswillcertainlybereassuredto...

問題詳情：

Those who are potential customers will certainly be reassured to learn that a case covered in rubies and diamonds is included free ________ charge.

A. from                 B. to                     C. in                     D. of

【回答】

知識點：介詞

題型：選擇題