To prepare for the Olympic Games in summer, London ____ its largest ever exercise to test the response of emergency services.
Scientists suggested parents _______ children do the housework to make money.
— Will James attend the party? — He has just arrived, but I didn’t know he ______ until yesterday.
He devoted himself to action rather than talk, so his dream ______ in the end.
Those young men were ____ by the police with causing a disturbance in the neighborhood.
The fog was so heavy this morning that drivers could hardly _______ the things even ten meters away from them.