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.