4 Fill in the blanks with the words given below.Each word may be used only once.-|||-alter address execute available essential-|||-convey digital competitive expansion editorial-|||-appeal strategy integrity influence survival-|||-1.They have never __ their programs by a single day.-|||-2.When I returned home,I tried to __ the wonder of this machine to my husband.-|||-3.I always shop at that supermarket; its prices are very __-|||-4.Most authorities agree that playing is a very __ part of a child`s development.-|||-5.We are going to our campaign plan to the letter.-|||-6.We are not going to change our __ policy.-|||-7.The company has abandoned plans for further __ .-|||-8.An animal`s sense of smell is still crucial to its __ .-|||-9.He was praised for his fairness and high __-|||-10.I have rather a large __ over a good many people.

步骤 1：理解题意
题目要求使用给定的单词填空，每个单词只能使用一次。我们需要根据上下文和单词的含义来选择合适的单词。

步骤 2：分析每个句子并选择合适的单词
1. They have never __ their programs by a single day.
- 根据上下文，这里需要一个表示“改变”的单词，因此选择 "altered"。
2. When I returned home, I tried to __ the wonder of this machine to my husband.
- 这里需要一个表示“传达”的单词，因此选择 "convey"。
3. I always shop at that supermarket; its prices are very __
- 这里需要一个表示“有竞争力的”的单词，因此选择 "competitive"。
4. Most authorities agree that playing is a very __ part of a child's development.
- 这里需要一个表示“必不可少的”的单词，因此选择 "essential"。
5. We are going to __ our campaign plan to the letter.
- 这里需要一个表示“执行”的单词，因此选择 "execute"。
6. We are not going to change our __ policy.
- 这里需要一个表示“可用的”的单词，因此选择 "available"。
7. The company has abandoned plans for further __
- 这里需要一个表示“扩张”的单词，因此选择 "expansion"。
8. An animal's sense of smell is still crucial to its __
- 这里需要一个表示“生存”的单词，因此选择 "survival"。
9. He was praised for his fairness and high __
- 这里需要一个表示“正直”的单词，因此选择 "integrity"。
10. I have rather a large __ over a good many people.
- 这里需要一个表示“吸引力”的单词，因此选择 "appeal"。