【正确答案】 B

【答案解析】[解析] omit：疏忽；遗漏。fail：失败；没有能够。He failed to understand the real significance of it. 他没有理解它的真正意义。forget：忘记。I forgot to wind my watch last night. 昨晚我忘了给手表上发条。delete：消去；删除。The patient's high fever deleted most of his memories. 病人的高烧使他的记忆差不多丧失殆尽。leave out：遗漏；省略。She left out an important detail in her account. 她在叙述中漏掉了一个重要的细节。