句型转换。 1. Mr Hu taught her math last year.(改为一般疑问句) _________Mr Hu_________her math last year? 2. His friend posted the photos yesterday.(改为否定句) 'His friend_________ _________the photos yesterday. 3. Tom often goes skating on Sundays in winter.(改为一般疑问句) _________Tom often_________skatig on Sundays in winter? 4. She doesn't wash her clothes on Sunday.(把'on Sunday'改成'last Sunday') She_________ _________her clothes last Sunday. 5. —Were there any actors at the aquarium?(作否定回答) —No,_________ _________ .