she was doing her homework at this time yesterday 改为一般疑问句
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shewasdoingherhomeworkatthistimeyesterday改为一般疑问句shewasdoingherhomeworkatthistimeyesterday改为一般疑问句shew
she was doing her homework at this time yesterday 改为一般疑问句
she was doing her homework at this time yesterday 改为一般疑问句
she was doing her homework at this time yesterday 改为一般疑问句
Was she doing her homework at this time yesterday?