試題詳解

186. According to the web page, who can get a full refund?
(A) Lilly signed the contract on July 1 and make a refund request on October 31.
(B) Peter signed the contract on February 28 and make a refund request on March 1.
(C) Joyce signed the contract on January 1 and make a refund request on March 1.
(D) Wilson signed the contract on January 31 and make a refund request on October 31.