Mathematics ____ the language of science.
—Who has taken my pen away? —__________. He was here a moment ago.
—Do you have ________ difficulty working out the problem?—Yes. It is ________ me.
My dictionary__________. I have looked for it everywhere but still
—These boxes are too heavy for me to move. —Here, I’ll give you a hand ________ them.
____________professional violinist practices for several hours a day, but____________ violinist has his own way of playing the Beethoven concert.