In common with many people，I like white colour as it is a ________of purity.

—Jack Brown is very clever and he studies hard as well.—No ________ he comes out first in the exams.

Perhaps we need to clear away these books to make ______ for our new students.

They have considered their high standard of living a(n) ______ for practicing their basic beliefs.

—Li Lin is very bright and studies hard as well.—It’s no ______ he always gets the first place in any examination.