【题目】That sound doesn’t _______ in his native language, so it is difficult for him to pronounce it.
A. owe B. occur
C. take place D. happen
在线课程【答案】B
【解析】
A. owe 欠 B. occur存在，出现 C. take place 发生 D. happen发生。句意：那个声音在他的母语中不存在，所以对他来说很难发音。occur v. 存在，故选B。