句型转换：根据要求转换下列各句，每空一词。

1. To be careful with fire is important. (改为同义句)

    It is _____ _____ be careful with fire.

2. It's very cold outside. (改为感叹句)

    _____ _____ it is outside!

3. Yao Ming does well in playing basketball. (改为同义句)

    Yao Ming is _____ _____ playing basketball.

4. The fire burned that house last night. (对划线部分提问)

    _____ did the fire _____ that house?

5. My sister could draw when she was young. (改为同义句)

    My sister was _____ _____ draw when she was young