—If we take a plane,we’ll of course have arrived in Paris by the next weekend.—Don’t be sure.We should___the weather factor.What shall we do if it is foggy?
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.