Eliza remembers everything exactly as if it yesterday.
A. was happening
B. happens
C. has happened
D. happened
网友回答
A. was happening
B. happens
C. has happened
(答案→)D. happened
解析：为了强调Eliza记忆力好，对一切都记忆犹新，说话者才说“就像事情发生在昨天似的”，这显然是假设，所以as if引导的从句使用虚拟语气。主句中的时态是一般现在时，所以从句用一般过去时来表示虚拟。