The correct sentence is as follows: ‘Some people like to watch television all day.’ With ‘to’, we always use first form of the verb and call it infinitive. Hence, option (C) is the correct answer.

The sentence is grammatically correct and thus, no improvement is required.

Hence, option (D) is the correct answer.

I’m afraid I am not knowing will be replaced with I’m afraid I do not know as the sentence is in present indefinite. All other options are grammatically incorrect. Hence, option A is the correct answer.

 The first sentence is in negative and the presence of ‘Even’ provides us with a hint that the latter part will be positive. Hence, option c is the correct answer.

 Poodle is a specific breed among dogs. Like and as are never used together in a sentence. Therefore, it is used singularly. Therefore, we will replace the erroneous part with option A. Hence, option A is the correct answer.

Out of the given options “recognised by its” is the best suitable option. As the sentence is in passive voice “be” takes past participle form of verb after it, thus, “recognised” should be used. Also “by” is an agent, so, it should replace “from”. Hence, option (C) is the correct choice.

The given sentence is in the past tense as indicated by the previous verb forms such as "told" and "was". Therefore, ‘are trekking’ is not correct here. The auxiliary verb used should be plural as the subject is plural in nature i.e. "we". Therefore, option B is the correct choice.

Here the comparison is made between two actions. Hence the latter part will be in accordance with the first part as the comparison is made between two like things. Therefore, it should be ‘to answer accurately than to finish quickly.’ Hence, option D is the correct choice.

Not only …But also is used together. The pairing of "not only....but also" follows the parallelism rule of English. It means if but also is used with the verb or the object then not only should also be used before the verb or the object. In this sentence, the underlined part should be replaced with what is given in option c. Hence, option c is correct.

The underlined segment is correct. The question is a conditional sentence hence it will follow conditional rules. If noun/pronoun + past perfect, noun/pronoun + would/could + have + past participle. Option A and the question are both correct .Hence option D is the correct answer.