It 常见的四个句型It seemed only several minutes _ he made up his mind and told us his decision.A.that B.since C.when D.before 记住四个句型，能帮助你又快又正确做这样的题。1. It was +时间点+ when sth. happened. 表示：当某件事发生时，时间（it)是。如：It was 1997 when Hongkong returned to China. 2. It was +时间段 +before sth. happened. 此句型前必有前文，表示在那件事发生之后，另一件事发生之前，这两点之间的时间是多长。如接上句：It was two years before Macao returned to China too. 过了两年，澳门也回归了。 注：这个句型有两种情况，两种译法： 2 a. It was a long time before sth. ha
