Gorge couldn’t remember when he first met Mr. Anderson, but he was sure it was _____ Sunday because everybody was at _______ church.
Many people in the west make ________ a rule to buy Christmas presents for their relatives and friends.
They were all very tired, but ________ of them would stop to take a rest.
Come and see me whenever ________.
--The plane is due to take off at 7∶50 from the airport. --________ we fail to arrive there in time?
--They ________ out the problem, but failed. --What a shame ! I never thought it was going to happen like that.