41.Mary has a _______ view of our future. But nobody believes what she said.
A. portable B.primary C.possession D.positive
42.Nobody knows his _______ for helping us.
A. motive B.motion C.mood D.moral
43.Both sides agree to establish a _______ zone between the south and north.
A. midst B.mild C.mention D.neutral
44.This is a _______ moment for our research. We should be careful.
A. critical B.belt C.conscience D.copper
45.This textbook is for the _______ students, not for the beginners.
A. observation B.transportation C.advanced D.transfer
41.D 42.A 43.D 44.A 45.C