单项选择题
A. Joe’s trousers are black and white. B. One pair of scissors isn’t enough. C. All the machinery in the factory are made in China. D. The manager with some workers was working during the holidays.
A. The river could easily overflow. B. Even an illiterate person would understand that. C. They might be able to remember what he said. D. It may be useful for two students who want to learn about publishing.
A. which B. what C. that D. when