---Mother I’m afraid I can’t pass the exam.- darling. Your hard work will pay off.A.

问题补充：

---Mother, I’m afraid I can’t pass the exam.

---, darling. Your hard work will pay off.

A. Just my luck

B. Don’t mention it

C. Take it easy

D. It serves you right

答案：

A. Just my luck

B. Don’t mention it

(答案→)C. Take it easy

D. It serves you right

解析：根据后面的Your hard work will pay off. 可知应是对孩子进行安慰, 故答案为C。

Just my luck真倒霉；Don’t mention it 不客气；Take it easy别着急；放松些； It serves you right你罪有应得。