father is busy writing postcards this morning and /has written /ten so far.

分类: 作业答案 • 2022-07-11 11:52:24

问题描述：

father is busy writing postcards this morning and /has written /ten so far.
a :was writing b:has written; 为什么?

答

“今天上午父亲一直在忙着写明信片,到现在为止,已经写完10张了”.so far要用现在完成时.