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When comparing subjects using 'than', the subject pronoun (I) is used because the verb 'earned' is implied: 'He earned more than I [earned].' The subject case 'I' is grammatically correct because it's the subject of the implied clause. 'Me' would be incorrect here as it's an object pronoun.

Two subjects are being compared. So, both will be in subjective form....i.e they is correct option. Objective form 'them' is incorrect.

In formal English grammar, after 'It is' we use the subject pronoun 'I'. The verb following 'who' must agree with 'I', which is first person singular, so 'am' is correct. The structure 'It is I who am...' is the formally correct version, though colloquially 'It's me who is' is common.

When comparing with 'as', the subject pronoun is used because the verb 'is' is implied: 'as much in error as he [is].' The subject case 'he' is grammatically correct because it's the subject of the implied clause. 'Him' would be incorrect as it's an object pronoun.

In case of comparison between two subjects, it is desirable to keep both in subjective case. So, we will say I am as rich as they are or (in short as rich as they).

After 'It is' we use the subject pronoun 'I'. The verb following 'who' must agree with 'I', which is first person singular, so 'have' is correct (not 'has'). The complete structure is 'It is I who have made the error,' where 'have' agrees with 'who' (referring to I).

The correct conjunction here is 'as', which is used to compare manner or method: 'Do you work AS I told you to' means 'Do you work IN THE WAY THAT I told you to.' The sentence is asking whether the person works in the manner that was specified.

After 'It is' we use the subject pronoun 'I'. The verb following 'who' must agree with 'I', which is first person singular, so 'am' is correct. The complete structure is 'It is I who am lonely,' where 'am' agrees with 'who' (referring to I).

When the pronoun is the object of a verb like 'wants,' we use the object pronoun 'me.' The phrase 'you and me' together form the object of 'wants.' If the pronoun were the subject (like 'You and I are opening'), then 'I' would be correct, but here it's the object.

In case of comparison between two subjects, it is desirable to keep both in subjective case.

The verb 'make' requires object pronouns in this context. Since 'make' is transitive and takes a direct object, 'Gerbrand and her' functions as the object. 'Her' is the correct object form, not 'she' (subject case). 'They' and 'them' are plural pronouns that don't agree with the singular 'her' needed.

The relative pronoun 'who' refers to 'the one,' which is singular. Therefore, the verb must also be singular: 'has' instead of 'have.' 'May' and 'might' are modal verbs indicating possibility, not the present perfect tense needed here with 'made.'

After the verb 'want,' we use object pronouns. 'Him' is the object case, while 'he' is subject case. The phrase 'him and his wife' functions as the object complement of 'want.' 'We' is a pronoun that doesn't fit contextually, and 'will' is an auxiliary verb, not a pronoun.

The verb 'want' requires an object pronoun here. 'You and him' forms the object complement. 'Him' is the correct object form, not 'he' (subject case). 'His' is possessive, and 'they' is plural and subject case, making them incorrect.

The pronoun is the subject of the infinitive clause 'to be.' When a pronoun precedes the verb in such a clause, it takes subject case. 'Who' is the subject form, while 'whom' is the object form. 'I' and 'me' are first-person pronouns that don't fit the context.