The young man made a ______ to his parents that he would try to earn his own living after graduation.
The new bridge is ________ the one built last year.
________knowledge a man has,________it is for him to get a good job.
Many chemical substances react________oxygen.
The population of China ________ 1.3 billion,and 80% of the population________farmers.
They are quite different ________ each other ________their tastes.