Father is busy writing postcards this morning and______ten s
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Father is busy writing postcards this morning and______ten so far.
A.wrote B.was writing C.has written D.has been writing
为什么选D?D是什么时态?
A.wrote B.was writing C.has written D.has been writing
为什么选D?D是什么时态?
![Father is busy writing postcards this morning and______ten s](/uploads/image/z/8529764-68-4.jpg?t=Father+is+busy+writing+postcards+this+morning+and______ten+s)
D 是现在完成进行时:has/have + been + 动词的现在分词,表示一个动作从过去一直持续到现在(说这句话此时此刻还在持续)
这个句子的意思是“父亲整个上午都在写明信片,到目前已经写了10封.”而且他还在写
这个句子的意思是“父亲整个上午都在写明信片,到目前已经写了10封.”而且他还在写
Father is busy writing postcards this morning and______ten s
father is busy writing postcards this morning and /has writt
______are all writing postcards at this moment.
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