句型转换。 1. I made my son a blackboard. (改为同义句) I ______ a blackboard ______ my son. 2. She is good at English. (改为同义句) She______ ______ ______ English. 3. But she isn't good at math.(改为同义句) But she______ ______ ______ math. But she______ ______ ______ math. But she ______ badly______ math. 4. He stood on the other side of the street.(改为同义句) He stood on the ______ side of the street.