The class teacher was anxious to hear one of his top students _____ because of family move.
The expert did encourage the ______ of new medical treatments into his own country.
Mr Smith, _____ director of the company, can’t afford _____ week to travel abroad.
---A stranger gave me an umbrella when I was caught in the rain.---________.
________ more energy to my study instead of being crazy about Internet games, I would be sitting in a comfortable office now.
My parents lent me the money. ________, I couldn’t have afforded the trip.