—Is there anything wrong with you, Jake? You look so pale.—I feel very tired.I _____on this boring paper every day so far this month.
The numbers that researchers get from the experiments can be _______, just like number puzzles.
_______ the house is empty, memories flood my mind of a time when it was filled with life.
By the time a child is five, he _______ hundreds of hours of television.
There is nothing wrong with using a credit card for purchases. It’s more _______ than carrying loads of cash.
An earthquake of 9 magnitude struck off the coast of Japan on Friday,______ thousands of people dead and more missing.