Question

【题目】During the tenday vacation，they traveled to many parts of France ________their own expense.

A. on B. with

C. at D. in

Answer 1

【答案】C

【解析】考查介词。at one's own expense意为“自费”。句意：他们自费旅游了很多法国的地方。根据句意可知选C。