1. 用進行過去將來,完成過去將來,完成進行過去將來造句
過去進行時：She had been working all the night./I was writting a letter when she called.
將來進行時：Next Sunday we'll be flying to Sydney./He'll be taking his exam next week.
過去完成時：When I arrived Jane had just left./He showed me the poems he had written.
將來完成時：By the end of the year I'll have saved $1,000./Tom will have had his exam by 18 December.
過去完成進行時：I had often been thinking of you./He'd been worrying about her safety.
將來完成進行時：By the end of the year she'll have been acting for twenty years./In another month's time I'll have been studying here for ten years.
