You’d better give up using that kind of medicine, because it may be______ to your stomach.

Though most people are ____ the dangers of driving after drinking, many still insist on drinking alcohol.

From his _______look, I could see that he didn’t believe what I said.

After two years’ research, we now have a _______ better understanding of the disease.

Of course, all students want to increase their knowledge, but I believe that most students today want that knowledge to be _______ to their future career.