Four policemen rode past on their motorbikes,then came the television broadcasting car,and ______ the marathon runners.
Most of the educators are ______ providing more freedom to the teenagers, believing that it may make them more creative and independent.
I am trying to do what is best, but ______ I’ve got to consider the cost, which is of great importance.
Many doctors complain that they don’t have ______ working hours, for they have to wait for patients all day long in the hospital.
While there are some differences in the educational systems in many countries in the world, education itself is ______.
Many people think it’s very difficult to ______ a conversation with someone who only says “Yes” and “No”.