by bus/on the bus

【问】 I came here by the local bus.

有人告诉我这个句子有错误，不知错在何处?

【答】 当笼统地指交通工具时，可以使用by，并且表示交通工具的名词前不用冠词，例如bytrain(乘火车)，by bus(乘公共汽车)，by car(乘小汽车)，by ship(乘船)，by bike(骑自行车)等等。但是，当指某个具体的交通工具时，则不使用介词by，而且表示交通工具的名词之前要使用冠词：

1. I saw him on the bus. (LDCE)

我在公共汽车上看到了他。

2. [Barbary was working at the Slade.]where she went daily in a bus. (Macaulay)

……她每天乘公共汽车去那里。

3. Next day I was off to Birmingham in a train. (Doyle)

第二天我乘火车去伯明翰。

4. You won't go far on that old bike. (LEG)

你骑那辆旧自行车是走不远的。

5. We only managed to get there in time by begging a lift in a neighbour's car. (Wood)我们只因为搭乘了邻居的汽车才准时赶到了那里。

请做下面的英语试题：

1. We're going to go____.

A. in France in John's B. in France by John's

C. to France in John's D. to France by John's(Nelson)

2. Because of the storm and rough waves，it would be foolish to go out sailing today in asmall____.

A. automobile B. house

C. boat D. beast (Michigan)