Fill in the Blanks

“To buy from” means “to purchase”

“To call for” is an idiom which means “to be the requirement of” which is conveyed in the given sentence. Hence, (3) is the correct answer.

In this context, 'will come' expresses a simple future expectation or hope. The other options are grammatically incorrect or convey different meanings: 'must come' suggests obligation, 'should come' implies recommendation, and 'must be coming' indicates probability about an ongoing action. The sentence expresses a hope, not a requirement.

The correct structure uses the infinitive phrase 'To be elected' to establish the condition or requirement. This is an infinitive of purpose/condition. 'Elected' (past participle) would need a helping verb, 'having elected' implies completed action, and 'Electing' is the wrong participle form for this passive construction.

The subject 'increase' is singular, so it needs the singular verb form 'tends to' followed by the base form 'result'. 'Tending to' would make the sentence fragment, 'will tend' changes the meaning to certainty, and 'tends' alone would require the base form 'to result' immediately after. The correct phrase is 'tends to result in'.

The correct phrase is 'for the completion of' which uses the preposition 'for' followed by the noun phrase 'completion'. 'Of completion' is grammatically awkward, 'for the complete of' uses the wrong form (complete vs completion), and 'of complete' is missing the article and has incorrect structure. The pattern is 'conditions necessary for [noun]'.

The correct phrase is 'with a wavy, gliding motion' which describes how something moves. 'Having' would need to be followed by a noun (having motion), 'has' is a main verb that doesn't fit grammatically, and 'being' would need a different context. The preposition 'with' correctly introduces the manner of movement.

The phrase 'difficulty with driving' is a common collocation where 'with' indicates the specific area of difficulty. After prepositions, verbs take the gerund form (-ing). 'Be driven' would make the sentence passive with wrong meaning, 'to drive' is an infinitive that doesn't fit grammatically, and 'will drive' is a future tense verb that breaks the sentence structure.

When a verb functions as the subject of a sentence, it must be in the gerund form (-ing). 'Finding unknown quantities' correctly places the activity in the subject position. Option A incorrectly uses 'found' instead of 'find' in the infinitive. Option B uses the base form, and Option C unnecessarily adds an article 'the'.

The sentence requires 'Once' as an adverb meaning 'formerly' or 'at one time' to modify the entire statement about Pompeii. Option B creates a redundant subject 'it,' Option C is wordy and awkward, and Option D is grammatically incorrect. The concise adverb at the beginning properly establishes the temporal context before the volcanic destruction.

As there is movement we use the word 'into'.

The preposition 'besides' means 'in addition to' or 'other than,' which correctly completes the thought that people work for reasons beyond money. 'Beside' (without -s) refers only to physical position next to something. The correct word order places 'besides money' at the end for natural flow.

The present perfect passive 'has been used for' correctly indicates an ongoing action about Vitamin E cream's purpose. The subject 'Vitamin E cream' receives the action (passive voice), and the present perfect tense connects past usage to present relevance. Options A and D use incorrect perfect participles, while B is only a past participle without the auxiliary verb needed for present tense.

The phrasal verb 'pass off' means to happen or be conducted successfully. 'The event passed off without any untoward incident' is a standard expression for events occurring without problems. Other prepositions don't form correct phrasal verbs with 'pass' in this context. 'Pass of' and 'pass on' have different meanings, while 'pass away' means to die.