按要求改写下列句子，每空一词。8I2^5i0|1T8f1|;S
All the workers had to stay there last year.（改为反意疑问句）8I2^5i0|1T8f1|;S
All the workers had to stay there last year, 7{+E3N3s+W;i)k4s7c6N(q'S9y-j .8I2^5i0|1T8f1|;S