umm... 1.GWD里有这样一个句子:Since February, the Federal Reserve has raised its short-term interest rate target five times, and because of the economy's continued strength, analysts have been predicting for weeks that the target will be raised again in November. 上面crystalbain分析得很有道理,但是事实上如果predict的施动者很多,而且持续性地不断地有人在预测,那么用have been predicting也不无道理。 2.in the last year我觉得应该跟last year区分开,in the last (ten) year(s)/week(s) 这种表示“最近几世纪/年/月以来……”时间状语中,谓语动词用现在完成时。 |