句型转换。 1. I spent three hours (in) doing my homework.（改为同义句） _________ _________me three hours_________ _________ my homework. 2. He will help me organize the party.（改为同义句） He will _________me _________the party. 3. We will study hard for the test next month.（改为一般疑问句） _________ _________ _________hard for the test next month? 4. “I will be sorry.”“I will stay at home.”（用if合并为一句话） _________I _________at home, I_________ _________sorry. 5. I will go to the party.I will have agreat time.（用if 改为条件句） _________ _________ _________ _________the party, I_________ have a great time.