题目

________her grandma before, he didn’t know she was his grandma even if his mother had told him.（   ）A．Not being seenB．Not having seen C．Having not seenD．Not seeing 答案：B《曹刿论战》十年春，齐师伐我。　　公与之乘，战于长勺。公将鼓之。刿曰：“未可。”齐人三鼓。刿曰：“可矣。”齐师败绩。公将驰之。刿曰：“未可。”下视其辙，登轼而望之，曰：“可矣。”遂逐齐师。