{01}-What was the party like ? -Wonderful . It is years _____ I enjoyed myself so much .
A.after
B.when
C.before
D.since
解析:英语中"It is + 时间"后三种不同的用法。其一是:"It is + 时间+ that …",这是强调结构的句型,如:It is always on Wednesday morning that the famous professor comes to give us a lecture about Chinese literature . (那位著名的教授来给我上中国文学课总是在星期三上午);其二是:"It is +一段时间before …",这一句型的意思是:完成这个从句所发生的事所需的时间量,如:It is about a week before a Londoner can get a letter you post in Beijing today . (一个伦敦人要收到你今天在北京寄出的一封信需要一个星期的时间。);其三是:"It is +一段时间+since …"这一句型表示的是从从句中动词的动作起所延续的时间。 本题选D。
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