Today, the forests have almost gone. People must ________ down too many trees.

Would you like to go to the concertwith me — I’d love to. But I’m a little tired. I prefer athome rather thanout.

Will AIDS patients ______ the new drug and be cured eventually

all boat was almost sunk by the dinosaurs which suddenly ________ to the surface, fighting each other, but fortunately the three men ________ get away.

____ do you go to the library— Every week.