______ he has made a decision, it is not easy for you to make him change his mind.
. It was not until she got home ___ Jennifer realized she had lost her keys.
The brave people in the village preferred to die rather than _____ , and _____encouraged others to fight more bravely in the anti-Japanese battlefield.
______you’ve got a chance, you might as well make full use of it.
Paper produced every year is______ the world’s production of vehicles.
______matters most in learning English is enough practice.