Teb days[ ] long enough for tom to finishi his design.He does not need more.a.is b.has been c.was
问题描述：
Teb days[ ] long enough for tom to finishi his design.He does not need more.a.is b.has been c.was
诸位可以告诉本人如何选择吗 感激不尽
答
A
从后半句的does可以判断是陈述现在的事实,不需要考虑过去时
而这里也不需要用现在完成时,因为现在完成时表示过去动作对现在的影响,这里显然不是
句意：这些天足够他完成设计,他不需要更多天来完成了.