The key to exercise solutions in chapter 4.6 - Speaking for the textbook Focus 3 - Student's Book with authors Daniel Brayshaw, Vaughan Jones, Bartosz Michałowski and Sue Kay from Pearson Education
Rewrite the indirect questions (e-h) in the SPEAKING POCUS as direct questions. What are the differences in word order? Which type of question is more polite?
e. What is the soup?
f. What is the Mario Special Salad?
g. What is the pasta sauce?
h. Are the onions in it?
question word + auxiliary + subject + verb
question word / if + subject + verb (like in an affirmative sentence)
Indirect questions are more polite.