—The tickets for the concert have been sold out. —Thanks for reminding me, but I am lucky to have got .
He ___ to break the record for the long-distance race.
__ your courage, ___ you will not fail.
He knew nothing about the matter, but he talked as if he __it.
He ____ the cave before the police arrived, but he failed.
It was proved that the problem __ partly in the air pollution.