what they have done __useful to the people

1个回答

  • 选b.consider sth.+形容词,"认为某事怎样怎样"如

    I consider him dishonest 我认为他不诚实.

    变成被动语态就是:He is considered dishonest.

    这句的意思是:他们的行为被认为是对人民有用的.

    what they have done 是主语从句,当作第三人称,所以要用is considered.

    D 是将来时态,有时也可以用