Question

---I’m sorry, but there is no smoking on this flight.---Oh, I _____that. Sorry, I won’t again. .

---I’m sorry, but there is no smoking on this flight.---Oh, I _____that. Sorry, I won’t again. A．don’t know B．didn’t know C．won’t know D．haven’t known

Answer 1

B

试题分析：考察时态。句义：—对不起。在飞机上不能抽烟。—哦！我之前不知道这点。我以后不会再这样做了。根据句义可以在说话之前不知道在这里禁止抽烟。故使用一般过去时。B正确。