----- Why hasn’t she come to the party? ----- I’m afraid she can’t. She is _______ in preparing her graduation paper.
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