问题补充:
.We are taught that a business letter should be written in a formal style in a personal one.
A. less than
B. other than
C. better than
D. rather than
答案:
A. less than
B. other than
C. better than
(答案→)D. rather than
解析:短语辨析。A.小于B.除了;不同于 C.超过;好于……D.而不是。句意:已经教给你了商业信函应该用正式的格式书写而不是以私人风格,故选D。