题目

请用完整的句子回答下列问题，每个问题限用一句话。 1．Do you think children should do housework or not? 2．How often do you do housework at home? 3．When do you usually do housework? 4．What chores can you do? 5．What can you learn from doing housework? 答案：1.__I__think__children__should__do__housework. 2._I__often__do__housework__at__home__twice__a__week. 3.I__usually__do__housework__on__weekends. 4.I__can__do__much__housework__such__as__doing__the__dishes sweeping__the__floorwashing__clothes__and__so__on. 5._I__can__learn__to__be__independentand__understand__my__parents__well__from__doing__housework.已知集合若A∩B={-3}，求实数a的值.