We can use the words in brackets in the text about an excursion to complete each sentence as follows:
To answer this type of activity we must take the context given in the text into consideration. Let's take number 1 as an example. The original word in brackets is "nature," which is a noun.
However, what we need to complete number 1 is not a noun. We need an adjective to describe the museum. So, we should change "nature" to "natural".
Learn more about completing texts here:
https://brainly.com/question/1542299