Final answer:
The interrogative forms of the given sentences:
A. Will she do it for you?
B. Do I know he is your brother?
C. Did the plane take off at 4 o'clock?
D. Did they sit under a tree?
E. Has a wasp bitten him?
F. Is the bus coming?
Step-by-step explanation:
A. Affirmative: She will do it for you.
Interrogative: Will she do it for you?
Explanation: In the affirmative sentence, it states that she will do something for you. In the interrogative form, we use "Will" at the beginning to turn it into a question.
B. Affirmative: I know he is your brother.
Interrogative: Do I know he is your brother?
Explanation: The original sentence affirms that the speaker knows he is someone's brother. In the interrogative form, "Do" is added at the beginning to create a question.
C. Affirmative: The plane took off at 4 o'clock.
Interrogative: Did the plane take off at 4 o'clock?
Explanation: The affirmative sentence provides information about when the plane took off. To turn it into a question, "Did" is placed at the beginning.
D. Affirmative: They sat under a tree.
Interrogative: Did they sit under a tree?
Explanation: The affirmative sentence describes an action. To form the question, "Did" is used at the start.
E. Affirmative: A wasp has bitten him.
Interrogative: Has a wasp bitten him?
Explanation: The original sentence states that a wasp has bitten him. The interrogative form starts with "Has" to create a question.
F. Affirmative: The bus is coming.
Interrogative: Is the bus coming?
Explanation: The original sentence affirms that the bus is coming. The question form starts with "Is" to inquire about the bus's status.