So far we ________ the first eight lessons of the book.
A.covered B.had covered
C.are covering D.have covered
另外,这题怎么翻译呢?
So far we have covered the first eight lessons of the book.
参考译文:到目前为止我们已经学完了这本书最开头的8篇课文。
A. covered
B. had covered
C. are covering
D. have covered
请详细解释全部四个选项
答案解析:D为正确答案
(备注:So far 到目前为止,一般用现在完成时态,用来描述从过去到现在所发生动作或者存在某种状态或者是某种状况。)
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