1 . ______ was difficult for them to take time off to celebrate the festival.
| A．It | B．That | C．This | D．What |
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2 . ________ is my duty to do something for students in poor areas. （用适当的词填空）
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3 . ________is really easy to get lost among the twisting and turning Hutongs near the Palace Museum in Beijing.
| A．It | B．That | C．This | D．What |
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2022-12-13更新
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2卷引用：内蒙古自治区2021-2022学年普通高中学业水平考试（高二会考）英语试题
4 . ______ is important to protect our environment. (用适当的词填空)
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5 . ______ is generally agreed that no one can learn all the knowledge all his life.
| A．What | B．As | C．Which | D．It |
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2022-05-01更新
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2卷引用：天津市红桥区2016-2017学年高二下学期会考模拟英语试题
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6 . ________ in the library regulations that any book borrowed should be returned by due time, or the borrower will be fined.
| A．What is required | B．It is required |
| C．What requires | D．It requires |
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2022-04-25更新
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2卷引用：甘肃省天水市第一中学2021-2022学年高二下学期学业水平模拟考试（二）英语试题
7 . ________is apparent that we have made________.
| A．It;progress | B．It; a progress | C．What; progress | D．What; a progress |
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2021-10-21更新
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124次组卷
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2卷引用：2021年12月吉林省普通高中学业水平合格性考试英语仿真模拟试卷C（考试版+全解全析+参考答案+听力）
8 . __________ is said that stress can cause illness.
| A．That | B．It | C．This | D．What |
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