About twenty of us had been fortunate enough to receive invitation to a film studio(摄影间) to take ...

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A. has begun had begun has been on had been on

have been lived had been lived had been living have been living

had been built, was set up was built, was set up had been built, had been set up was built, had been set up

has begun had begun has been on had been on

had been dying had died had been dead died

in to for with

have been lived had been lived had been living have been living

rang；has been has been ringing；is had rung；was has rung；was

has begun had begun had been on has been on

had been is going to be will be is

have have had have been having have been had

–I’m sorry, but neither Jack nor I therE. A. have been had been have gone has gone

would work had been working will have worked would have been working

A.had already been on has already been on had already begun has already begun

worked has been working had worked has worked

had got married had married married had been married

A. was Saddam Hussein Saddam Hussein was had Saddam Hussein been Saddam Hussein had been

come about come across come off come round

was were had been have been