44. He ______ all his time and energy to his work.
—Would you like more tea? —No, , thanks.
If I were in _______position of the mayor, I wouldn’t allow _______factory like this standing on the bank of the Yangtze River.
By looking at a problem in as many ways as possible, creative thinkers can find solutions that would _______ remain invisible.
—What has made him upset recently? —_______ alone to face a troublesome milk case.
When he realized the police had spotted him, the man _______the exit as quickly as possible.