语法与词汇 13.Some children want to challenge themselves by learning a language different from______their parents speak at home. (易错)

【正确答案】 A

【答案解析】what=the one that，what在引导的宾语从句中作宾语。句意：一些孩子想通过学习不同于父母在家里说的语言来挑战自己。