改为否定句: Rick is helping his sister learn English. Rick _____ _____ his sister learn English.
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改为否定句:RickishelpinghissisterlearnEnglish.Rick__________hissisterlearnEnglish.改为否定句:Rickishelpinghiss
改为否定句: Rick is helping his sister learn English. Rick _____ _____ his sister learn English.
改为否定句: Rick is helping his sister learn English. Rick _____ _____ his sister learn English.
改为否定句: Rick is helping his sister learn English. Rick _____ _____ his sister learn English.
isn't,helping
Rick isn't helping his sister learn English.
is not helping
isn't
改为否定句: Rick is helping his sister learn English. Rick _____ _____ his sister learn English.
Rick has brothers and sisters .(改为否定句)
Rick always goes to school at nine fifty.(改为否定句)
my tail is short 改为否定句
It is an orange改为否定句
That is my notebook.(改为否定句)
IS that her book. 改为否定句
this is my friend.(改为否定句)
It is an apple改为否定句
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She is my sister.改为否定句
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she is my friend 改为否定句
lt is an orange 改为否定句
That is my brother.改为否定句
That is my uncle.改为否定句
That is her eraser改为否定句