第二节：完成句子
根据所给提示完成句子(每空一词，每题3分，共15分) 。
71.很明显，他必须跟她道歉，那么她就会原谅他的。
It is _______ that he must _________ ______ her, then she will______ him.
72.如果你欠债了，我会信守诺言帮助你。
If you _______ _______ _________, I would ______ ______ _____ to help you.
73.你本不应该对母亲撒谎的。
You ________  ______  ______  ______ _____ to your mother.
74. 我不会允许你在考试中作弊而不受惩罚。
I won’t ______ you______ _____  _____  cheating in the exam.
75.  那个商店老板试图通过打折来赢回顾客。
The shopkeeper is trying to ________ his customers ________ with a ________ .