has been used to detect gold,这是什么时态?句中的used to 是表示过去常常做某事吗?
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has been used to detect gold,这是什么时态?句中的used to 是表示过去常常做某事吗?
A new machine called 'The Revealer' has been invented and it has been used to detect gold which has been buried in the ground.这句中的it has been used to detect gold是什么时态?used to 是表示过去常常做某事的意思吗?has been buried in the ground这句是现在现成时的被动态吗?请详解.
A new machine called 'The Revealer' has been invented and it has been used to detect gold which has been buried in the ground.这句中的it has been used to detect gold是什么时态?used to 是表示过去常常做某事的意思吗?has been buried in the ground这句是现在现成时的被动态吗?请详解.
两者都是现在完成时.has been used to是be used to的现在完成时形式,是“从发明以来一直被用来勘探金矿”的意思,而同样的has been buried in the ground是be buried in the ground的现在完成时形式,就是说“金矿一直被埋在地下”.可以看出两者都是被动语态的现在完成时形式,用法为sth./sb.+has/have+been+done(动词过去分词).现在明白了吗?
has been used to detect gold,这是什么时态?句中的used to 是表示过去常常做某事吗?
It has been used to detect gold which has been buried in the
the machine has been used to detect gold.the machine has bee
used to do sth.是被用来做某事还是过去常常做某事
used to do是过去常常做某事 be used to sth是习惯于 那么“过去常常习惯于做某事”英语怎么说?
过去常常使用 英语过去常常做某事是 used to do 要是过去常常使用什么呢 比如人们过去常常使用油轮还有帮忙写一句
used to do sth 过去常常做某事 be used to doing sth习惯于做某事之类的用法
used to do 过去常常做
used to(过去常常做某事)句型怎么写反义疑问句?比如She used to watch TV every even
used to do sth 是过去常常做某事的意思、 do 要不要用过去式?例 he used to get up g
used to do 过去常常做某事的 否定形式和疑问形式
used to do sth是过去经常做某事还是习惯于做某事