1. Excuse me, can you tell me how to get to City Hall?

2. Excuse me, can you tell me how to go to City Hall?

3. The writer will get to Antarctica by plane.
4. The writer will go to Antarctica by plane.

[Thank you for your help. Can we use both 'get to' and 'go to'? Are both the same in meaning?]

Those two phrasal verbs are pretty much interchangeable, especially 3 and 4. I think I would use #1 far more often than 2, though, but 2 is not incorrect.

1. In order to get to City Hall, you will need directions. You can ask someone for help or use a navigation app on your smartphone. To ask for directions, you can approach a passerby and say, "Excuse me, can you tell me how to get to City Hall?" This is a polite and straightforward way to ask for directions.

2. Alternatively, you can use the phrase "Excuse me, can you tell me how to go to City Hall?" This is another polite way to ask for directions, and it conveys the same meaning as the first sentence.

Both phrases, "get to" and "go to," are commonly used when asking for directions. They are interchangeable in meaning and can be used interchangeably.

Regarding the sentences about going to Antarctica:

3. "The writer will get to Antarctica by plane." This sentence conveys that the writer will reach or arrive in Antarctica using a plane as their mode of transportation.

4. "The writer will go to Antarctica by plane." This sentence also means that the writer will reach or arrive in Antarctica by using a plane as their mode of transportation.

In this case, both "get to" and "go to" can be used interchangeably and have the same meaning. They both indicate the writer's means of reaching their destination, which is Antarctica, and emphasize the transportation method they will use, which is a plane.