As is known to all language learners, the newly learnt words will soon be forgotten unless ______ used in everyday communication.
--- Was he sorry for what he'd done? --- _____________.
Neither side is prepared to talk to ________ unless we can smooth things over between them.
Accustomed to _______ the steep mountains, she had no difficulty reaching top.
Her father _________ in the USA for another year so that she could work toward her master's degree.
After the fashion show, she was always ________ the beautiful clothes.