The lift in that tall building went wrong and got trapped ________ the floors. People in it had no way out and were in panic.
— She looks very happy. She __________ have passed the exam.— I guess so. It’s not difficult after all.
The biggest problem for most plants, which ___ just get up and run away when threatened, is that animals like to eat them.
In crowded places like airports and railway stations, you __________ take care of your luggage.
The teacher __________ have thought Johnson was worth it or she wouldn’t have wasted time on him, I suppose.
The weather turned out to be fine yesterday. I __________ the trouble to carry my umbrella with me.