______ is no doubt that the media play a major role in influencing people’s opinions.

Do you know ________ the school?—About twenty minutes ago.

Look! David is helping his mother _______ the room.

Is it the first time you _______ Beijing?—-No. But the first time I ______ here, the city wasn’t so beautiful.

Can I walk across the road now, mum?——No, you_______. You have to wait until the light turns green.