Choose the correct word to complete the sentence.

The carpenter ordered a new _____ of safety goggles to protect his eyes while working.

The correct option is pair.

Explanation:
To select the correct word to complete the sentence, we need to look at the definitions of the words provided in the options:

1. pair (Noun): Refers to a set of two matching things used together or regarded as a single unit (for example, a pair of goggles, a pair of shoes, or a pair of scissors).
2. pare (Verb): Means to trim, peel, or cut off the outer edge or skin of something (for example, to pare a fruit).
3. peer (Noun/Verb): As a noun, it means a person of the same age, status, or ability. As a verb, it means to look keenly or closely at something.
4. pear (Noun): Refers to a sweet, bell-shaped fruit.

In the context of the sentence, safety goggles are made of two eye pieces/lenses meant to be used together as a single protective item. Thus, the collective noun pair is the correct word to use.

Complete Sentence:
The carpenter ordered a new pair of safety goggles to protect his eyes while working.