She ______ tomorrow and you had better see her off(送行).
Having checked the doors were closed, and ___ all the lights were off, the boy opened the door to his bedroom.
Work gets done __________ when people do it together, and the rewards are higher too.
Of the two coats, I’d choose the __________ one to spare some money for a book.
Speaking of all the songs he has written, I think this is probably his __________ one.
After two years’ research, we now have a __________ better understanding of the disease.