___________ certain that his invertion will lead to the development of productio
题型：不详难度：来源：
___________ certain that his invertion will lead to the development of production.| A．That’s | B．This is | C．It’s | D．What’s |
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答案
| C |
解析
试题分析：通过分析句子结构，可知这个句子中包含一个主语从句，且主语从句位于句末，只能用it作形式主语，故选C。
点评：作为形式主语的it并无实际语义，只是为满足语法上的需要，避免句子头重脚轻，它代替的是句子的真正主语。it 作形式主语，主要分为下列三种情况：不定式作主语、动名词作主语和名词从句作主语。 |
举一反三
| Do you expect _____ to be a possibility that we may have five days off for the coming Dragon Boat Festival? |
--- I can’t find my raincoat. I hung it behind the door.
--- I saw Peter going away with _____, but I’m not sure whether it’s yours. |
| ____ is our belief that improvements in health care will lead to a stronger, more prosperous economy. |
| We’ve been looking at houses but haven’t found ______ we like yet. |
_____ could be better than having a cup of tea after a day of work, which helps you relax.| A．Anything | B．Something | C．Everything | D．Nothing |
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