一 Have you finished your homework yet? -- No, not yet. I think it'll take me half an hour.
In order to make up for the lost time, they are working ______.
She used ______ on the right in China, so she was not used _______ on the left in England at first.
____ finishing his homework, he went to play basketball.
He tried to invite some famous pop stars to sing in the concert ______, but failed.
According to a recent survey, children spent up to 25 hours a week _____ TV.