句型转换(每空一词)。 1. Anna was born in 1982. ( 对画线部分提问) was Anna born? 2. Mozart started writing music at the age of four. (改为一般疑问句) Mozart writing music at the age of four? 3. I learned English for 12 years. (对画线部分提问) did you ? 4. He spent four hours doing his homework. (改为否定句) He four hours doing his homework. 5. The bag is very heavy. I can't carry it. (合成一个句子) The bag is heavy me carry.