Question

2.
This is the desk which he invariably wrote at.
SAY helping verb
(B) linker
(C) preposition
(D) verb​

Answer 1

Answer:

option d is write

Explanation:

please like and follow

Answer 2

This is the desk which he invariably wrote at. Here at is the preposition.

EXPLANATION:

A preposition is a function that is linked to the pronouns, nouns. Prepositions are used in ‘phrasal verbs’. Prepositions are information to any ‘noun or verb’ and signify various ‘relationships’ such as time, location, and position.  

Examples of prepositions are: with, about, of, for, since, from to name some. In this sentence into has been used. At that has been used is a preposition and therefore option (c) is the correct answer.