Select the correct indirect form of the given sentence. “Do you suppose you know better than your own father?” jeered his angry mother.

Correct — D. The direct speech is a yes/no question: it opens with Do and has no wh-word, so it is reported with asked whether (or if).

The reporting verb jeered is past, so each tense steps back one place: suppose → supposed, know → knew.

The mother is talking to her son, so you → he and your → his. Do disappears and the order becomes a statement's: he supposed, not did he suppose. That is option (d).

Why the others are wrong

• (a)
  His angry mother jeered and asked if you suppose you know better than your own father. — Nothing has been converted. It keeps you, your and the present tense (suppose, know), though a past reporting verb needs supposed and knew, and the pronouns must now point to the son.
• (b)
  His angry mother jeered and asked whether he had supposed he has known better than his own father. — had supposed over-shifts: present simple steps back to past simple (supposed), not to the past perfect. Then has known leaves a present perfect inside a past report, so the two verbs clash.
• (c)
  His angry mother jeered that did he suppose he knew better than his own father. — that did he suppose keeps the question's auxiliary and inverted order, and uses that, the link for reported statements. A reported yes/no question needs whether or if with statement order: whether he supposed.

A yes/no question has no wh-word to carry into the report, so the link is if or whether.

The word order turns into a statement's: subject before verb, and the auxiliary do, does or did drops out. The question mark goes too.

After a past reporting verb each tense steps back one place: present simple → past simple, present perfect → past perfect. Pronouns change to fit the reporter: you → he, your → his.

Key facts

• A reported yes/no question: asked + if/whether + subject + verb, with no question mark.
• After a past reporting verb, present simple becomes past simple: suppose → supposed, know → knew.
• Past perfect in a report comes from a simple past or a present perfect in the direct speech (knew or have known → had known), not from a present simple.

Common traps

• Keeping the question order (did he suppose) inside the reported clause.
• Shifting present simple two steps, to the past perfect (had supposed).

No directly related past PYQ was found.