All these measures______in view of the obvious improvement in the_英语解答

All these measures______in view of the obvious improvement in the present situation.(prove)

人气：399 ℃　时间：2020-03-16 03:54:30

解答

句意：鉴于在当前的形势下所到得的明显改良,所有的这些措施都被证明了（有效）.
填 have been proved. 现在完成时的被动语态.