—Mum I’m going to take my driving test tomorrow.— I’m sure you will pass it.A. Congratula

问题补充：

—Mum, I’m going to take my driving test tomorrow.

— I’m sure you will pass it.

A. Congratulations!

B. Well done!

C. Indeed!

D. Good luck!

答案：

A. Congratulations!

B. Well done!

C. Indeed!

(答案→)D. Good luck!

解析：句意:--妈妈，明天我将去考驾照。--祝你好运，我相信你能通过考试的。Congratulations!祝贺! Well done!干得好! Indeed! 的确，真的 ! Good luck!

祝你好运!根据句意故选D。