一般過去時：過去已經(jīng)發(fā)生的事情 動作
現(xiàn)在完成時：截止說話的時候已經(jīng)完成的動作 事情
跟據(jù)語法解釋 看上去這兩個都對,實際上也是這樣的,不過現(xiàn)在完成時一般需要有明確的對象,比如 我曾經(jīng)去過美國3次 就可以用現(xiàn)在完成時 因為有 “我” 這個明確的對象all the roads leading to the mountain village
一整個句子不就是對象了嗎？
Because all the roads leading to the mountain village （ ）
Because all the roads leading to the mountain village （ ）
the rescue workers were not able to reach it to help.
A.were blocked
B.are blocked
C.have been blocked
D.had been blocked
為什么用一般過去時不用現(xiàn)在完成時
the rescue workers were not able to reach it to help.
A.were blocked
B.are blocked
C.have been blocked
D.had been blocked
為什么用一般過去時不用現(xiàn)在完成時
英語人氣：872 ℃時間：2020-05-13 02:28:51
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