She has a gift for creating an atmosphere for her students ____allows them to communicate freely with each other.
The rare animals would die _______ if men were allowed to shoot as many as they wished.
The prize will go to the writer ________ story shows the most imagination.
The reason _______ he was absent from the meeting is_____ he suffered from a headache.
Everyone knows that _____ is dangerous to play with fire, but _____ is difficult is to prevent children from playing with fire.
—I am thinking of the test tomorrow. I am afraid I cannot pass this time. —_________! I am sure you will make it.