Andrey and I will meet at the restaurant before <u>we</u> go to the concert. After eating, we will go to the concert hall, which is <u>near</u> the Arts Center Building.
Hence, two parts of speech which will complete the sentence is a pronoun, preposition.
<em>Pronouns</em> refer to the words which replace nouns in a sentence. For example, Alan is a good boy. Alan works hard. Alan is punctual.
Hence, instead of a repetition of noun we use pronouns,
Alan is a good boy. He works hard. He is punctual.
Therefore, in the above sentence 'Andrey and I' is replaced by 'we.'
<em>Prepositions </em>are used to express the relationship between two or more places, persons or time or express a relationship in time or space.
In the above sentence preposition 'near' indicates the location of the concert hall.