It is along time _______they separated, but it won’t be long ____ they meet again.

Though some insist separate education can satisfy people’s special needs, most people consider it as ________, saying it will cause greater conflict between the poor and the rich.

When you rewrite the paragraph, I advise you to leaveout __________ is thought unnecessary or misleading.

Bob is young, _______ he knows a lot.

Tom wonders _____ next week.