English

The correct preposition to use in this expression is 'on behalf of,' which means representing or speaking for others. Therefore, 'I would like to thank you on behalf of all of us' is correct.

The word 'bemoan' means to express sorrow or lament about something. Among the options, 'Lament' is the closest synonym, meaning to express grief or regret. Other options like 'Denounce' and 'Loathe' have different meanings, and 'Soothe' is almost opposite in meaning.

The correct preposition to use with 'cares' in this context is 'about,' as it indicates concern or interest in something, such as the environment.

The correct preposition to use when referring to the quality of food served at a place is 'at'. The phrase 'The food is very good at that restaurant' is grammatically correct and idiomatic.

The phrase 'all my doubts were dispelled' means that the doubts were removed or eliminated, which fits the context of being convinced by cogent arguments. The other options do not logically fit the sentence meaning.

A "clique" refers to a small, exclusive group of people who share similar interests or activities, making option C the correct choice.

The correct preposition to use with 'the end of the lesson' is 'at', as it indicates a specific point in time when the homework was set.

"Bonhomie" means cheerful friendliness or geniality, so the synonym is "friendliness." The other options do not relate to this meaning.

The word 'reluctant' means unwilling or hesitant to do something. Among the options, 'Unwilling' is the closest synonym, while the others have opposite meanings.

The correct preposition to use in the phrase 'It was kind ___ you to help' is 'of'. This is a fixed expression in English where 'kind of you' means that the person showed kindness by helping.

The correct preposition to use with 'jealous' in this context is 'of'. The phrase 'jealous of her success' is the standard and grammatically correct expression.

Defamation refers to the act of damaging someone's reputation by making false statements. Both 'Libel' (written defamation) and 'Slander' (spoken defamation) are synonyms of defamation, making option C correct.

The correct preposition to use with 'accused' in this context is 'of'. The phrase 'accused of theft' is the standard and grammatically correct expression.

The word 'abstemious' means characterized by self-denial or moderation, especially in eating and drinking. Therefore, 'Moderate' is the correct synonym among the options provided.

The present perfect continuous tense 'have been looking' is correct here because it describes an action that started in the past and is still continuing. Since 'police' is plural, 'have' is used instead of 'has'.

"To 'Jazz Up'" means to make something more exciting or lively, which matches option B. The other options do not capture the idiomatic meaning of the phrase.

The word 'facile' means easily achieved or effortless, so its synonym is 'easy'. The other options do not share this meaning.

The correct preposition to use with 'belongs' when indicating association with a group or family is 'to'. Hence, 'He belongs to a noble family' is correct.

The word 'confiscated' means to take or seize something, especially by authority. Therefore, 'Seize' is the correct synonym among the options provided.

Option A correctly converts the direct question into reported speech by removing the question format and using 'why she was sleeping' without 'that'. Options B and C are grammatically incorrect because 'that' is unnecessary and the word order is wrong in C. Option D is incorrect as A is correct.

Option D correctly uses the past tense 'ran' to match the past tense 'got up,' making the sentence grammatically correct. The other options have tense agreement errors.

The word 'oblique' means slanting or not straightforward, so 'Slanting' is the correct synonym. Other options do not match the meaning of 'oblique'.

The word 'exotic' means unusual or strikingly different, so the synonym 'unusual' correctly matches its meaning. The other options (dull, uninteresting, boring) are antonyms rather than synonyms.

The correct preposition to use with 'jealous' when indicating the object of jealousy is 'of'. Therefore, 'She is jealous of my friend' is correct.

The correct preposition to use with 'owing' in this context is 'to', making the phrase 'owing to the bad weather' correct. This expresses the reason for the cancellation clearly and idiomatically.