练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情

    【题目】 They have leading experts in this field, and that's ____ they've made important progress.

    A. where B. why C. whether D. who

    【答案】B

    【解析】

    试题分析：本题考查表语从句。句意：在这个领域他们有领先的专家，那就是为什么他们取得了重要的进展。表语从句的成分完整，所以排除D who 这个连接代词，根据句意，题干缺少“为什么”的意思，所以选择B why。

    练习册系列答案
    年级 高中课程 年级 初中课程
    高一 高一免费课程推荐！ 初一 初一免费课程推荐！
    高二 高二免费课程推荐！ 初二 初二免费课程推荐！
    高三 高三免费课程推荐！ 初三 初三免费课程推荐！
    相关习题

    科目：高中英语 来源： 题型：

    【题目】After Jack ________ some e-mails, he started working on his report.

    A. sends B. has sent C. had sent D. would sent

    查看答案和解析>>

    科目：高中英语 来源： 题型：

    【题目】—Which one of these do you want?

    —________. Either will do.

    A. I don't mindB. That's for sureC. No problem

    查看答案和解析>>

    科目：高中英语 来源： 题型：

    【题目】Has he (安排) for a car to pick them up from the airport?

    查看答案和解析>>

    科目：高中英语 来源： 题型：

    【题目】 —My computer doesn't work!

    —Robert is a computer expert. How I wish he __________ with me.

    A. came B. had come C. is coming D. has come

    查看答案和解析>>

    科目：高中英语 来源： 题型：

    【题目】Parents often tell their children that they __________ take candy from strangers.

    A. needn't B. wouldn't C. shouldn't D. daren't

    查看答案和解析>>

    科目：高中英语 来源： 题型：

    【题目】You'd better go there by train.The train ticket is________the airplane ticket.
    A.as cheap three times as
    B.as three times cheap as
    C.three times cheaper than
    D.cheaper three times than

    查看答案和解析>>

    科目：高中英语 来源： 题型：

    【题目】—How long have you been studying at this school?

    —I have been studying here ________.

    A. since I was thirteen years old

    B. when I was thirteen

    C. at the age of thirteen

    D. after I was thirteen

    查看答案和解析>>

    科目：高中英语 来源： 题型：

    【题目】—The washing machine isn’t working.

    —I used it this morning. It ______ fine then.

    A. is working B. was working C. works D. has worked

    查看答案和解析>>

    同步练习册答案