When I got home, I found the door open, a terrible thought ______ me—had any one broken into the house?
It is bad ________ to point your fingers at others while talking.
After searching through the mountain, they managed to _____ the missing children.
Everyone, be sure to be honest! You can't get away __________ cheating in the exam.
You ought to _______ us with rice and dishes of vegetables, but you didn't.
It is time for class to start. The teacher __________ be in the classroom now. A. can B. should C would D. shall