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英语-单选题,答案已经填在括号内,请说明每个题填这个单词的原因?

来源:学生作业帮 编辑:拍题作业网作业帮 分类:英语作业 时间:2024/05/02 01:38:55
英语-单选题,答案已经填在括号内,请说明每个题填这个单词的原因?
16.The manager said that there were two reasons (why) our sales dropped sharply last year.
17.Now the air pollution in this city (is becoming) more and more serious with each passing day.
18..Before the age of the Internet,we used to (book) our holidays through travel agents.
19.Since the new technology was introduced last month,we (have succeeded) in speeding up production.
20.In order to improve your communication skills,we will show you how to learn (more) about your customers than you know now.
21.As a public relations officer,you should know your customers (in) detail.
22.People invest money in this company (because) they believe it will make profits.
23.(No matter how) you choose to contact us,you can expect our efficient and helpful service.
24.Generally,it takes courage for an aged person (to begin) a new life in a strange country.
25.If we( had had) more time and money,we could have visited many more places.