【2013湖北孝感】—Look at the young lady in red. Is it Mrs. King?—No. It _____ be her. She is wearing a white dress today.
He wrote books _______ they could learn about how he treated the sick.
I think he is one of ___________ players in the world.
You shouldn’t drive for more than three hours without ______ a rest.
There were few doctors, _____ he had to work very hard _____ his own.
Many people were dying ________ they didn’t get to hospital quickly enough.