English

In the sentence, "herself" refers back to the subject "she" and is used to emphasize that she prepares the note for her own benefit, making it a reflexive pronoun.

The phrase "like a sitting duck" means being vulnerable or an easy target, often implying defenselessness or exposure to danger. It does not mean lazy, fat, or sleepy. Among the given options, "Ignorant" is the closest because it can imply being unaware or defenseless, making one vulnerable. However, none of the options perfectly capture the meaning, but "Ignorant" fits better than "Lazy."

The phrase "wild goose chase" means a foolish and hopeless pursuit of something unattainable, which matches option A exactly. The other options describe different idioms or concepts unrelated to this phrase.

The phrase 'good at' is followed by a gerund (verb + -ing form), so 'speaking' is the correct choice. 'Spoken' is a past participle, 'speak' is the base form, and 'spoke' is the past tense, none of which fit grammatically here.

The phrase "feel blue" is an idiomatic expression in English that means to feel sad or depressed. Therefore, option A is the correct meaning of the phrase.

The phrase "chew the fat" is an idiomatic expression meaning to chat idly or engage in casual, leisurely conversation. Therefore, option D correctly captures this meaning.

When changing direct speech to reported speech for a present tense statement, the verb tense usually shifts to the past tense. Therefore, 'The sun is stationary' becomes 'He said that the sun was stationary.'

The phrase "to hit the nail right on the head" means to say or do something that is exactly right or accurate. Option A correctly captures this meaning, while the other options do not.

The correct reported speech form for 'They were busy the whole day' is 'You said that they had been busy the whole day.' This uses the past perfect continuous tense to indicate an action that was ongoing in the past before another past action.

The phrase 'to leave someone in the lurch' means to abandon or desert someone when they are in difficulty or need. Option D correctly reflects this meaning.