根据句意填写疑问词组,完成下列句子,每空一词. —___ ___does he have a music class? —Twice a week
问题描述：
根据句意填写疑问词组,完成下列句子,每空一词. —___ ___does he have a music class? —Twice a week
答
How often请问how often和twice a week分别是什么意思？how often "多久（一次）"，对动作在时间上发生的频率提问。twice a week 一周两次