The shop assistant showed her several mobile phones and she chose expensive one.A. lessB.

问题补充：

The shop assistant showed her several mobile phones and she chose

expensive one.

A. less

B. least

C. the less

D. the least

答案：

A. less

B. least

C. the less

(答案→)D. the least

解析：根据题目中内容可知本题选择的the least expensive，表示最不贵的，故选D