English

"Heedless" means showing a reckless lack of care or attention. The sentence implies that he quarreled without considering the consequences, so "heedless" is the correct word.

A verbal noun is a noun derived from a verb and often ends in '-ing.' In the sentence, 'travelling' is used as a noun (the act of traveling), making it the verbal noun.

After the phrase 'It is necessary for [someone] to...', the verb should be in its base form. Therefore, 'make' is the correct choice: 'It is necessary for government to make their people's life better.'

The word 'at' in the sentence 'the hunter aimed (at) the dove' is a preposition because it shows the relationship between 'aimed' and 'the dove.'

The correct verb form to complete the sentence 'He ___ around the filthy room.' is 'looked,' which is the simple past tense and matches the subject 'He.'

The analogy compares opposites: 'candid' is the opposite of 'indirect', just as 'honest' is the opposite of 'devious'. Therefore, 'honest: devious' is the correct analogy.

The word 'repast' is a synonym for 'meal,' both referring to food that is eaten at a particular time. Therefore, 'meal' is the word most similar in meaning to 'repast.'

The word 'succulents' correctly completes the sentence, as cacti are a type of succulent, and the exhibit features both cacti and other succulents from around the world.

The phrase 'The after morning' is incorrect. The correct phrase should be 'The morning after' or simply 'The next morning.'

The word 'homogeneous' means something that is uniform or composed of similar elements. Its antonym is 'heterogeneous', which means composed of different or diverse elements.