单项选择题
A. Working at the meat counter. B. Working in the produce section. C. Carrying groceries out of the store for customers. D. Checking the quality of the milk products.
A. A sweater. B. An expensive pen. C. A microwave oven. D. A dishwasher.
A. She knows Professor Arnold has come. B. She thinks Professor Arnold has checked in. C. She is sure that Professor Arnold has arrived. D. She doesn’t know whether Professor Arnold has arrived.