单选题 I was told ______ e-mail the hotel for reservations.
A. either to call or to B. that I should call or to
C. to either call or to D. I ought either to call or

【正确答案】 A
【答案解析】[解析] 结构识别
本句意为：我被告知可以给旅馆打电话或发电子邮件来预订房间；“打电话”和“发电子邮件”在句中是平行结构，所用形式应一致，且放在either... or... 之间；因此A为答案。