—Could you give us an account about the big fire?—OK. It was a Friday evening _______the fire broke out and ten persons were killed in it.
__ 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.
The cruel war __ his wife and children.