1. It's necessary to study hard in the school.(同义句) ______ ______ study hard in the school. 2. We should watch TV too much.(否定句) We ______ ______ TV too much. 3. They went to the park yesterday.(划线部分提问) ______ ______ they go to the park? 4. He knows how to look after pets.(一般疑问句) ______ he ______ how look after pets? 5. You should take your dog for a walk every day. (同义句) ______ your ______ for a walk every day.
