第1个回答 2010-12-05
She has/had to take care of his younger brother, because her mother is/was sick in hospital
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第2个回答 2010-12-05
Her mother was hospitalized ， he had to look after her brather。
第3个回答 2010-12-05
She had to take care of her brother,because her mother was sick in hospital.
第4个回答 2010-12-05
She has to take care of his younger brother because her mother was sick in hospital.
第5个回答 2010-12-05
She had to look after her brother for her mother was ill in hospital本回答被提问者和网友采纳