Her father began to learn a foreign language (when he was 40 years old).对划线部分提问

问题描述:

Her father began to learn a foreign language (when he was 40 years old).对划线部分提问
Simon bought (three) boxes of cookies in the USA. 对划线部分提问

When did her father begin to learn a foreign language?她父亲什么时候开始学外语的?
How many boxes of cookies did Simon buy in the USA?西蒙在美国买了多少盒曲奇?