English

Option D, 'Will the cake have been baked by my mother?' is the correct passive voice form of the future perfect tense, matching the active voice question 'Will my mother have baked cake?'. The other options contain grammatical errors or incorrect tense usage.

The antonym of 'Friend' is 'Enemy' because a friend is someone who supports you, while an enemy is someone who opposes or harms you. The other options do not represent opposites of 'Friend'.

A novel is defined as a long fictional prose narrative, typically involving many characters and complex plots, which matches option B. The other options describe different literary forms such as short prose, short narrative, or drama.

The word 'contaminate' means to make something impure or dirty. 'Debase' means to reduce in quality or value, which is a close synonym in the context of making something worse or impure. The other options have opposite or unrelated meanings.

A 'sinecure' is a position or office that requires little or no work but provides a salary or benefits, making it the most suitable word for the given definition. The other options do not fit this meaning as precisely.

Option D correctly forms the passive voice question equivalent of "Did you visit a zoo?" by using the past simple passive structure "Was a zoo visited by you?". The other options contain incorrect verb forms or auxiliary verbs, making them grammatically incorrect.

Option A correctly converts the active sentence 'She will invite me' into the passive voice as 'I shall be invited by her,' using the proper future passive structure. The other options contain grammatical errors in verb forms or auxiliary usage.

The term 'lexicon' specifically refers to the complete set of words in a language, making it the most accurate choice. 'Vocabulary' is close but generally refers to the words known or used by an individual rather than the entire language.

The term 'consanguineous' means 'having the same ancestor' or 'related by blood.' Therefore, option C is the correct meaning of the word.

The word 'vague' means unclear or not clearly expressed, which is synonymous with 'fuzzy'. The other options do not share this meaning: 'clear' is the opposite, 'ill-timid' is not a standard English word, and 'evade' means to avoid, which is unrelated.