句型转换。 1. Li Ming has already finished his homework.（改为一般疑问句） _____________ Li Ming _____________ finished his homework yet? 2. Both of the boys are good at basketball.（改为否定句） ______________ of the boys _____________ good at basketball. 3. Laura has never been to Hong Kong.（改为反意疑问句） Laura has never been to Hong Kong, ____________ ___________? 4. Mr. Brown has taught in the school since 1990 .（对划线部分提问） _____________ _____________ has Mr. Brown taught in the school? 5. The twins came to China three years ago.（改为现在完成时态的句子） The twins have _____________ _____________ China for three years.
| 1. Has, finished 2. Neither, is 3. has she 4. How long 5. been in |