feasible

克隆人类或许是可行的，但这符合道德吗？

It may be ___feasible to clone human beings, but is it ethical?

考虑到我们目前的资源，这个提议的项目似乎是可行的。

Given our current resources, the proposed project seems ___feasible.

是否还能在三个月内完成这项建设？

Is it still ___feasible to complete the construction within three months?