The get-together after tem years of separation should be a(n)__________of excitement, but the old friends could not feel real joy.
Is this _____ ?
The trouble is _____ we are short of hands.
The guide showed the travelers _____ of the factory.
We should mind our behaviour ______ public.
Excuse me, I have no ______ on me. Can you _____ the note of 100 yuan ?