Fill in the Blanks

The correct answer is 'that of all human beings' because we need to compare weights properly. 'The total weight of all the ants' is being compared to 'the total weight of all human beings.' 'That of' refers back to 'total weight' to avoid repetition. Option A is grammatically incomplete. Option C 'is of' is grammatically incorrect. Option D has an extra 'the' before 'all' which is unnecessary.

The correct answer is 'none' because 'none' can refer to 'not one' or 'not any' of more than two items. With three houses, we need a word that covers all three. 'Neither' is only for two items. 'Either' means 'one or the other' of two. 'No one' is typically used for people, not inanimate objects like houses, in this construction.

The correct answer is 'Although' because it shows contrast between the adequate rainfall (positive condition) and the lack of high yield (negative result). 'Although' introduces a concessive clause. 'Since' and 'Due to' suggest cause and effect, which would mean the trees should have produced well. 'In spite of' needs to be followed by a noun phrase, not a clause.

The correct answer is 'In' because 'In business' is the correct phrase meaning 'in the field of business' or 'in the context of business.' 'At' would need to specify a particular location. 'The' is an article, not a preposition that fits here. 'On' is used for surfaces or specific days, not for general fields or domains.

The correct answer is 'gives' because the subject is 'earth's gravity' (singular), so we need a singular verb in the present simple tense. 'Gives' is the third person singular form. 'Give' would be for plural subjects or first/second person. 'Giving' would create a continuous tense which doesn't fit the general fact being stated. 'Given' is a past participle and grammatically incorrect here.

The correct answer is 'damage' because in this context, 'damage' is an uncountable noun referring to physical harm caused to the vehicles. 'Damages' is a legal term referring to monetary compensation awarded in court, not physical harm. 'Damaging' is a participle that would need a different sentence structure. 'None of these' is incorrect because 'damage' is the right answer.

The correct answer is 'Since' because 'Since' when used with a point in time ('a very long time') indicates the starting point of an action or state that continues to the present. 'For' is used with a duration (like 'for 10 years'), not a point. 'From' and 'Till' don't fit the context of showing how long something has been continuing up to now.

The correct answer is 'regards' because 'as regards' is a standard formal phrase meaning 'concerning' or 'regarding,' used when referring to correspondence or documents. It's a set expression where 'regards' functions as a noun. 'Which regards' and 'was regarded' don't form correct grammatical structures. 'Regardings' is not a word in English.

The correct phrase is 'frightened of being killed' (or 'afraid of being killed'). After 'frightened', we use the preposition 'of' followed by a gerund (-ing form). 'To be killed' incorrectly uses the infinitive, 'to being killed' has no grammatical basis, and 'for being killed' is not the standard preposition for this emotion.

This sentence uses a correlative comparative construction of the pattern "the comparative adjective ..., the comparative adjective ...". Therefore, the blank requires the article "the" to complete the phrase "The greater the increase in population".

'Regards' is correct because 'Capitalist society' is a singular subject requiring a present tense verb. 'Was regarded' is past tense, 'regarded' lacks the necessary -s for third-person singular, and 'which regards' creates an ungrammatical relative clause without context.

'It is anticipated' is correct because it uses the anticipatory 'it' structure with a passive verb, which is standard for formal predictions. 'They are anticipated' has no clear subject, 'In anticipation' is a fragment, and 'Anticipating' would need a clear subject performing the action.

'Great many' is correct because 'firms' is a countable plural noun. 'Great deal of' and 'considerable amount of' are used with uncountable nouns, while 'large part of' means something different (a portion, not a large number).

'Like' is correct because it creates a proper comparison between two groups (ballet dancers and actors). 'The like' is a noun phrase meaning 'similar things', 'the same' needs 'as', and 'same as' doesn't fit grammatically in this position.