—It’s such a beautiful day. Why not have a picnic with us? —_____. But I have a lot of homework to do.
.A modern city has been set up in ____ was a wasteland ten years ago.
To make members of a team perform better, the trainer first of all has to know their ____ and weaknesses.
In the new century, we still should _____ primary importance to the development of economy.
I remember _____ this used to be a quiet village.
---I drove to Shanghai for the 2010 Expo last week. --- Is that_____ you had a few days off?