贝贝哈拉
选A是对的,这是not until用于句首时的倒装句.另外题干一点错误,纠正一下was 在当table tennis accepted as a regular part of the Olympic Games.not until用于句首时,主句用倒装,从句不用.如题：正常句子应是table tennis was accepted as a regular part of the Olympic Games not until 1986,主句是table tennis was accepted as a regular part of the Olympic Games ,当not until用于句首时,主句应用倒装,变为was table tennis accepted as a regular part of the Olympic Games,所以完整的句子Not until 1986 was table tennis accepted as a regular part of the Olympic Games.这句话我看用强调句不合适,因为这句话的重心不是1986.而是table tennis was accepted as a regular part of the Olympic Games.好象table tennis was accepted as a regular part of the Olympic Games必须在1986发生,其他时间发生就不行了,其实table tennis was accepted as a regular part of the Olympic Games发生在1986只是巧合而已.
yuanxia6636
选b.首先考虑not....untill句式，意思是直到……才，然后考虑此句为强调句式，遵循It is后跟被强调的内容，然后加that连接整个句子。记住，一定要用陈述句式。也可以用排除法，a选项后面要用倒装句式。c选项it没有和when相搭的结构，d选项里少一个not.希望能帮助你。
