我分不清过去式和现在完成时 说现在完成时.对现在仍有影响 那么你是怎么从句中理解出这个结果对现在有没有影响的 这里有三个例子,我需要详细解析,怎么看出是完成时或过去式的 1.I finally got the job I dreamed about .Never in all my life( B ) so happy A did I feel B had I felt 2.So difficult ( B ) it to live in an English-speaking country that I detemined to learn English well. A have I felt B did I feel 3.I failed in the final examination last term and only then ( B ) the important of studies. A had I realized B did I realized 怎么看对现在有没有影响?