（1）、We had a great party last weekend.(变为较难疑问句) you a great party last weekend?
（2）、Mr. and Mrs. Smith are taking a walk at this moment.(变为否定句) Mr. and Mrs. Smith a walk at this moment.
（3）、Mary goes to an art lesson on Sunday afternoon (就划线部分提问) Mary go to an art lesson?
（4）、Please turn off the lights when you leave the room.(改写句子，句意不变) Don't the lights when you leave the room.
（5）、Premier Wne Jiabao says achieving GDP growth at average of 7% for the 12th Five-Year Plan will not be easy.（改写句子，句意不变） Premier Wne Jiabao says it will not be easy GDP growth at average of 7% for the 12th Five-Year Plan
