As we have seen, the focus of medical care in our society has been __________ from curing diseases to preventing diseases—especially in terms of changing our many unhealthy behaviors.
The internet has made ____ possible for everyone to talk with friends miles away.
The _________ at the military academy is so rigid that students can hardly bear it.
I remembered _____ the door before I left the office, but forgot to turn off the lights.
Teachers required that all the students ___ their homework all alone.
His favorite food is fried snack and soft drinks. ______ is no surprise that losing weight is just his dream.