Astronauts in a spaceship have to _______weightless conditions _______are quite different from ______are on the earth.
I would like a new job which pays more, but ______ I enjoy the work I’m doing at the moment.
—Only one of these books is worth _______. —_______ is no wonder that you look so upset.
Service was included in the bill, so you _______ the waiter. It was a waste of money.
When you copy this paper, be careful not to ______ a single word.
Why does she steal things ________ she could easily afford to buy them?