It took them five days to complete the difficult task.(对划线部分提问)
did it take them to complete the difficult task?
The man began to work four hours ago.(改为同义句)The man has________ ________four hours.
They have been away from here since two years ago.(改为同义句)________ ________two years________they left here.
They started to play the piano one or two hours ago.(改为同义句)They started to play the piano________ ________ ________two ago.
We started to skate two hours ago.(对画线部分提问)________ ________you start to skate?
He ran in the school for half an hour.(对画线部分提问)________ ________ ________he run in the school?