His funny hat made the students _____ in class.
My grandparents _________for fifty years and they are both quite healthy now.
—Where is Jack? —I noticed that he ________the teacher’s office just now.
—Don’t worry. Your uncle is coming to help you. —________he doesn’t come?
My friend’s flight had taken off _________ I got to the airport to see him off.
The monkey was seen _________off the tall tree.