Traveling ______a speed of 160 km/h,we have covered a distance of 120 kilometers ________less than 50 minutes.
According to statistics, a man is more than twice as likely to die of skin cancer _________ a woman.
It is reported that the police will soon ____ the case of two missing children.
_______ the right kind of training, these teenage soccer players may one day grow into the international stars.
At present, one of the arguments in favor of the new airport ________ that it will bring a lot jobs to the area.
Some people fear that ________ air pollution may bring about changes in _______ weather around the world.