The numbers that researchers get from the experiments can be _______, just like number puzzles.
A. disappointing B. inspiring C. worrying D. confusing
_______ the house is empty, memories flood my mind of a time when it was filled with life.
A. Since B. Unless C. As if D. Even though
By the time a child is five, he _______ hundreds of hours of television.
A. will watch B. will have watched C. had watched D. is watching
There is nothing wrong with using a credit card for purchases. It’s more _______ than carrying loads of cash.
A. convenient B. valuable C. sensitive D. innocent
If not _______, you’re allowed to return everything within 10 days for a full refund and no further duties.
A. to satisfy B. being satisfied C. satisfied D. satisfying
Don’t touch your eyes, nose and mouth, because they aren’t covered by skin and can _______ the virus more easily.
A. take up B. pick up C. make up D. set up