It is not always easy for the public to
题型:选择题
问题:
It is not always easy for the public to see _______ use a new invention can be of to human life.
A.whose
B.what
C.which
D.that
It is not always easy for the public to see _______ use a new invention can be of to human life.
A.whose
B.what
C.which
D.that