English

The term 'Topophilia' refers to a strong sense of love or emotional connection to a place. The other options do not relate to love for a place.

The correct preposition to indicate a time period during which something happens is 'in'. Therefore, 'in the first half of the match' is correct, as it specifies when the local team scored the goals.

The correct preposition to use with 'houses' in relation to an island is 'on.' This is because an island is considered a surface or piece of land, and 'on' is used for locations situated on top of such surfaces (e.g., islands, streets, shores). Using 'around' would imply the houses are surrounding the island, which is not the intended meaning here. 'In' suggests being inside an enclosed space, which does not fit the open geographic nature of an island. Therefore, the sentence should read: 'The island is so small that there are only five houses on it.'

The idiom 'to beat the air' means to continue doing something despite it seeming pointless or futile, which matches option C. The other options do not correctly define this phrase.

The term 'sanctimonious' specifically refers to making a show of being morally superior to others, which matches the question's description exactly. The other options do not convey this meaning.

The idiom "Best of both worlds" means enjoying the advantages of two different things without the disadvantages. Option C correctly captures this meaning.

Both "on the weekend" and "at the weekend" are correct prepositional phrases to refer to a specific weekend. "On the weekend" is the preferred usage in American English, while "at the weekend" is more common in British English. "During the weekend" and "over the weekend" are also used to emphasize the entire span of the weekend. However, "in the weekend" is not idiomatic and should be avoided. Since the question uses "this weekend," which is a specific time period, the correct preposition in American English is "on." Therefore, "I intend to visit my grandparents on this weekend" is correct in American English usage.

The correct prepositions are 'at' to specify the exact time ('at three o’clock') and 'for' to indicate the purpose ('for tea'). This usage is standard in English for expressing time and purpose in invitations.

The idiom "champing at the bit" means being extremely impatient or eager to do something. It originates from horses biting or chewing on their bits when they are restless or eager to move.

Both "Huge" and "Enormous" are correct synonyms of "Gigantic." According to authoritative sources like Merriam-Webster and Dictionary.com, "Huge" and "Enormous" are commonly used synonyms for "Gigantic." The original question's choice of "Enormous" as the correct answer is acceptable, but "Huge" is equally valid. "Bright" is unrelated, and "None of these" is incorrect. To avoid ambiguity, either "Huge" or "Enormous" can be accepted as correct answers.