怎么辨别一般过去式 现在完成时 过去完成时
3个回答
主要是看时间状语,不同的时态,不同的时间状语.
一般过去式：时间状语有last year、yesterday 、just now 、 a moment ago
the day before yesterday等
1.I borrowed the book two days ago.
2.The meeting started ten minutes ago.
3.He left his hometown last year.
现在完成时：时间状语有
already yet never just ever before these days
in the past ten years so far...
She has already done her homework.
Great changes have taken place in our country in the past ten years
过去完成时表示“过去的过去”
When I got there,he had already left.
