单选题
when did the bookseller tell the doctor about his foot? [A] As soon as the doctor came into the shop. [B] While he was getting the books ready. [C] After the doctor had books in his hand.
【正确答案】
B
【答案解析】[解析] 原文提到“When John was getting them ready，he told the doctor about his bad foot”，所以本题答案为[B]。