Swimmers must be very strong in order to build up speed because of the high resistance (阻力)of the water. Runners,__________, must struggle against the heavy resistance of the air and ground.
All the students ______ gets along very well with will be invited to her birthday party.
Some old Chinese customs, many of you are too young to know, have already died out.
Whether ways will be found to stop pollution or not is just _______ worries the public.
It’s necessary to be prepared for a job interview.___ the answers ready will be of great help.
Not far from the house ____ two gardens, ______ seated nearby playing bridge with his children.