What place is it—Haven’t you found out we ______backwhere we ______

China’s first self-designed modem bridge reopened to road traffic, we Chinese were so proud when it was built 50 years ago.

If you______the right map , we wouldn’t have got lost

Helping others is a habit, _____ you can learn even atan early age.

________on a clear day，far from the city crowds，the mountains give him a sense of peace