The manager was very angry, for he had sent his business partner two thousand machines yesterday, half of _________ unqualified.
It was not until he arrived at the office_____ realized he had forgotten the key.
. You can’t imagine _______ when they received those nice Christmas presents.
. ____ of the land in my hometown ____ covered with trees and grass.
. It is difficult for us to _________ a conversation with so much noise around us.
I failed again in the examination and only then _____ how much time I had wasted.