Present perfect continuous has been snowing → past perfect continuous had been snowing under backshift after a past reporting verb; keep the Yes/No → if** structure.

(Rules): Yes/No question → asked + if/whether + statement order. With a past reporting verb, simple present (habit/“every year”) generally backshifts to simple past**: _attend → attended_. Avoid inversion after “asked,” and fix pronouns if needed.

Backshift of tense and deictic markers is required: 'is performing' becomes 'was performing', 'today' becomes 'that day', and pronouns shift appropriately.

Converting indirect to direct Yes/No questions involves restoring the original present-tense form and appropriate pronouns.

Present-tense reporting retains the original tense; therefore, the form with 'must' and appropriate pronouns is correct.

** **Polite request → told/asked + object + to-infinitive**; **am → was**, **I → she**. (a)(b) wrong structure; (c) pronoun not shifted. ---

** **this → that**, **is → was**, **mine → hers**. (a)(c) keep present and **this**; (b) wrong possessive **her**. ---

** **Exclamatory → exclaimed that + very/so + adjective**; **am → was**, **your → my**. (b) no backshift. (c)(d) incorrect **that how** structure. ---

** **WH-question reporting:** remove inversion; **did go → had gone**. Others keep inversion, misuse "asked to," or wrong verb form **went** after **did**. ---

** **Present perfect passive → past perfect passive**; **will → would**; pronouns consistent. Others mix persons/tenses. ---