Questão 3167619

Young father to twelve-year-old son: “I’d appreciate it if you should return home before dark”.

Brother to little sister: “Should you need my assistance, don’t hesitate to ask”.

Head of Customer Service to client: “No worries. Speak soon”.

Presiding officer to audience: “Welcome to this momentous occasion, our graduation ceremony.”

Dean to post-graduate students: “How’s it going?”