the day they had been looking forward to came at last 为什么用ca

the day they had been looking forward to came at last 为什么用ca The day we had been looking forward to _ at last.A.came B.co .the day we had been looking forward to ___at last..A came B The letter he had been looking forward to came at last this The day-my birthday-I had been looking forward to __ at last 1.( ) The day we had been looking forward to at last The letter I was looking forward to came at last.为什么用came不用 请问The day we are looking forward to came at last .中的we are l the moment you'd been looking forward to came at The letter he had been looking forward to（arrive） at last. The day we had been looking forward to 句中有at last,应给用什么时态?例如The day we have been looking forward to