Trabout jams during rush hours，but today every hour is rush hour.

So far we have done a lot to build a low-carbon economy, but it is _____ idealWe have to work still harder[ ]

He seems to be giving the impression that he didn’t enjoy himself in Paris. ______, he has a wonderful time.

Sorry, your car ______in front of the hotel.

Whose pens are there –They are ____. They aren’t ____.