As the world’s population continues to grow, the ___of food becomes more and more of a concern.
Now that we've discussed our problem,are people happy with the decisions ________?
The children all turned ________ the famous actress as she entered the classroom.
The government plans to bring in new laws ________ parents to take more responsibility for the education of their children.
________ the right kind of training,these teenage soccer players may one day grow the international stars.
Please do me a favor—________ my friend Mr.Smith to Youth Theater at 7:30 tonight.