—Has Tom finished his task yet?—I’m not sure. But he _____ on it last week
We are worried about ____ they can be rescued.
You will never arrive at ____ is considered the Heaven on the Earth.
Materials of this kind ____ once ____ on the wall.
The Foreign Minister said, “____ our hope that the two sides will work towards peace.”
If you go into a store and feel that the clerk is being rude, stop and think that she____ a tough day, and put yourself in her shoes.