问题
选择题
Progress ____so far very good and we are sure that the work will be finished on time.
A．was
B．had been
C．has been
D．will be
答案
答案：C
题目分析：so far常与现在完成时态连用，句意为：到目前为止，进展非常顺利，我们确信工作将会按时完成。故选C。
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