改为一般疑问句,并作肯定和否定回答（1题）.还有改病句（2题）

改为一般疑问句,并作肯定和否定回答（1题）.还有改病句（2题）
（1）改为一般疑问句：
that is his sister.
（2）改病句：
that isn‘t she sister
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a b c
what's those in chinese?
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a b c