Fill in the Blanks

With 'neither...nor', the verb agrees with the subject nearest to it. 'President' is singular, so 'is' (singular) is correct. This is the proximity rule for neither/nor constructions.

With 'kind of', the demonstrative must match the number of 'kind' (singular). So 'That kind' is correct, not 'These kind' or 'Those kind'. 'Them kind' is grammatically incorrect. The phrase following (of apple) doesn't change the rule.

With fractions and partitives like 'three-quarters of', the verb agrees with the noun in the 'of' phrase. 'Work' is singular (uncountable), so the singular verb 'is' is correct. The fraction doesn't determine plurality - the noun after 'of' does.

With 'two-thirds of', the verb agrees with 'pupils' (plural countable noun), so 'were' (plural) is correct. The fraction itself doesn't determine plurality - the noun following 'of' does. This is the opposite pattern from the previous question.

With 'either...or' constructions, the verb agrees with the nearest subject. Here, 'parents' is plural and comes right before the verb, so we use the plural verb 'have' rather than 'has,' 'was,' or 'is.' The phrase 'either his sister or his parents' means only one group is coming, but the verb matches 'parents.'

Phrases like 'as well as' don't work like 'and' to make plural subjects. The verb must agree with the first subject only. George Bernard Shaw is one person (singular), so we need 'was,' not 'were.' The correct form is 'George Bernard Shaw, as well as Mahatma Gandhi, was a vegetarian.'

After 'as if' or 'as though' when describing an unreal or hypothetical situation, we use the subjunctive mood 'were' instead of 'was.' This shows the situation isn't real: she isn't actually being murdered. The correct form is 'She screamed as if she were being murdered.'

This is a mixed conditional sentence. The first clause uses the subjunctive 'were not' for a present unreal condition (she actually is stupid), while the result clause uses 'would have understood' for a past consequence that didn't happen. This combination shows a present trait causing a past missed opportunity.

This is a third conditional sentence describing an unreal past situation. We use the past perfect 'had gone' in the if-clause and 'would have felt' in the result clause. This means he didn't actually go to the party, and as a result, he didn't feel better.

This is a third conditional about an unreal past event. 'Had been' (past perfect) in the if-clause and completes with 'have countenanced' to form 'would not have countenanced' in the result clause. It means he was home that night, so he did tolerate those shenanigans (the opposite of what the conditional states).

'Each one of' is a singular subject, even when followed by a plural noun like 'children.' The verb must be singular to match 'each one.' Therefore, 'speaks' is correct, not 'speak.' The phrase emphasizes every individual child separately.

This is a first conditional expressing a possible future situation. 'If I ever become' uses present tense for the condition, and 'I would weed out' expresses the hypothetical result. The word 'ever' emphasizes the possibility. This type of conditional talks about real or likely future scenarios.

In 'one of the [plural noun]' constructions, the subject is 'one,' which is singular. The verb must agree with 'one,' not with the plural noun. Therefore, 'One of the many galaxies was proved' is correct with the singular verb 'was.' The relative clause 'that proved to be near a black hole' describes which galaxy.

'Every' distributes to each item individually, so even when multiple nouns are joined by 'and' after 'every,' the subject remains grammatically singular. 'Every possible cause and suspect' means each cause and each suspect separately, so the singular verb 'was' is required, not 'were.'

'Everyone' is a singular indefinite pronoun, so it requires a singular possessive pronoun. Traditionally, 'his' serves as the gender-neutral singular possessive. While modern usage sometimes prefers 'his or her,' in formal grammar 'his' alone is acceptable as the traditional neutral form.