题目内容：

按要求完成下列句子，每空一词。

1.Bob often gets to the bus station by__bus．(对画线部分提问)

____ ____ Bob often____to the bus station?

2.Let's walk to school.(改为同义句)

Let's go to school ____ ____．

3.Mrs.King goes to work by subway every day.(改为同义句)

Mrs.King ____ ______ ___to work every day.