1. He said nothing. (同义句) He ________ say ________. 2. He is good at his lessons. (同义句) He ________ ________ in his lessons. 3. We have cleaned the blackboard. (变为一般疑问句) ________ you ________ the blackboard? 4. He has been a doctor for seven years. (对画线部分提问) ________ ________ has he been a doctor? 5. Let's have a rest, ________ ________? (完成反意疑问句) |