-- Someone's dropped ________ and poured it on the new carpet. -- Who _______ it?
— Shall I give you a ride since you live so far away?— Thank you. _______.
You’d better _____ some money for special use.
Many students preparing for the midterm examination.
________ from space, the earth , with water_______ seventy percent of the surface , looks like a blue ball.
The news has spread all over the country _____ the spaceship succeeded in returning to the earth.