【选择题又一道】进行时与完成时的.-has your father returned from africa yet?-yes,but he ____ here for only three days before his company sent him to canada.A wasB has been C will beD would be我想选C或者D = =他爸爸是已经回

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【选择题又一道】进行时与完成时的.-hasyourfatherreturnedfromafricayet?-yes,buthe____hereforonlythreedaysbeforehiscomp

【选择题又一道】进行时与完成时的.-has your father returned from africa yet?-yes,but he ____ here for only three days before his company sent him to canada.A wasB has been C will beD would be我想选C或者D = =他爸爸是已经回
【选择题又一道】进行时与完成时的.
-has your father returned from africa yet?
-yes,but he ____ here for only three days before his company sent him to canada.
A was
B has been
C will be
D would be
我想选C或者D = =
他爸爸是已经回来了还是还没回来呢啊
yet是什么作用怎么用的啊

【选择题又一道】进行时与完成时的.-has your father returned from africa yet?-yes,but he ____ here for only three days before his company sent him to canada.A wasB has been C will beD would be我想选C或者D = =他爸爸是已经回
你的父亲从非洲回来没?
回来了,但是他只在这里待了三天,然后他的公司把他派送到加拿大.
before可翻译成：在...之前,之后
yet一般用于现在完成时,但在这里,爸爸的行为没有对现在有影响,就不能用完成时态.况且他是过去待了三天,所以用过去时态.

yet表示曾经啊,过去啊,差不多的.你爸从非洲回来了么?- -
你很喜欢用将来时.
你需要好好分析一下句子尤其是注意下时间啊.
后面用了sent 也就是过去时.时态一致把.

进行时,完成时与完成进行时的区别【选择题又一道】进行时与完成时的.-has your father returned from africa yet?-yes,but he ____ here for only three days before his company sent him to canada.A wasB has been C will beD would be我想选C或者D = =他爸爸是已经回现在完成进行时与现在进行完成时的区别?不是现在完成时，而是现在完成进行时！过去将来完成进行时与过去完成进行时的区别是什么? 一道英语时态简单选择题（现在完成时与现在完成进行时）The boys ___________ just now.That is why thier hair is wet.A.have been swimmingB.have swum我就觉得应该选A究竟选哪个更适合呢?现在完成进行时是可以现在完成进行时与现在进行时和过去进行时的区别现在完成进行时与过去完成时的区别过去完成进行时与过去完成时的区别是什么现在完成时与现在完成进行时的区别一般过去时、现在完成时与完成进行时的区别初中英语现在完成时与现在完成进行时的结构一般过去式与完成进行时的区别谢谢~~ 高中英语现在完成时与现在完成进行时的区别讲解如何区分过去完成时与过去完成进行时呢没更多的语境,选择上有什么技巧呢比如下面这道题,为何是进行时呢：The polar ice caps_B_ within a decade if global warming continues at its current paceAwill meltBwill ha 英语过去进行时的选择题练习. 现在完成进行时和将来完成进行的区别英语:将来完成时与将来完成进行时的区别过去将来完成时与过去将来完成进行时的区别