From the words lettered A to D below each of the following sentences, choose the word or group of words as it…

Analyze the question: The sentence is "You ... be ashamed of yourself for saying such a thing before the principal." We need the modal verb that fits grammatically and in meaning.

Concept: Modal verbs express attitudes such as obligation, advice, possibility, and criticism. "Should" is used to express moral duty or to rebuke someone for wrong behavior (e.g., "You should be ashamed of yourself!"). It's a fixed expression used to scold someone.

Step-by-step solution:

• A. we: This is a pronoun, not a verb. "You we be ashamed" makes no sense. ❌
• B. should: "You should be ashamed of yourself..." is grammatical and idiomatic. It expresses moral disapproval of what the person said. ✅
• C. might: "You might be ashamed" suggests possibility, which doesn't suit a rebuke. It also doesn't carry the sense of reproach. ❌
• D. shall: "You shall be ashamed" sounds like a prediction or a threat, and it is not the usual expression for scolding. ❌

Answer: The sentence is a rebuke, so B (should) is correct.

Tip: When you see "ashamed of yourself," think of the fixed phrase "You should be ashamed of yourself." Use "should" for advice, duty, or criticism. In WASSCE lexis and structure questions, first eliminate options that are not verbs, then check the meaning of the remaining modals.