To complete the text with the appropriate words - "go on," "go on a/an," or "go by," we need to understand the context and usage of these phrases. Let's analyze each blank space individually:
on foot to all the sights: When we use the phrase "on foot," it means to walk. So, you can "go on foot to all the sights" in this case, indicating that you can walk to all the sights in the town.
six-day tour of Europe and see the sights: When we talk about a tour or trip, we usually use the phrase "go on a" before mentioning the type of journey. Therefore, you can "go on a six-day tour of Europe" in this scenario.
coach and you don't pay for accommodation: Here, the word "coach" indicates a mode of transportation. We use "go by" to show the mode of transport or travel. Hence, you can "go by coach" in this sentence, meaning you travel by coach.
now 4 fast train from the airport to the city center: In this case, "go on" is the correct phrase to use when referring to using the fast train for transportation. Therefore, you can now "go on a fast train from the airport to the city center."
a cheaper option is to 5__ bus: When discussing alternative modes of transportation, we use "go by" to indicate the means of travel. So, you can choose to "go by bus" as a cheaper option to get from the airport to the city center.
In summary, the correct completions for the sentences are as follows:
- go on
- go on a
- go by
- go on
- go by
By understanding the context and the correct usage of the phrases, you can accurately complete the text with the appropriate options.