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⑴What happened?
⑵Did you go hiking yesterday?
⑶How did they go to Dalian?
⑷Whose schoolbag is heavier?
⑸What size are your shoes?
⑹Are you all right?
A. Size 7.
B. Jim fell off his bike.
C. I'm OK now.
D. By plane.
E. No, I didn't.
F. Mine.
In hospitals many nurses work day and night. They are very busy and kind. People often call nurses the "angels (天使) in white". But did you notice? They don't always wear white clothes. Sometimes they wear other colours, too. Nurses who look after children often wear pink. Nurses working in operating rooms (手术室) wear green. Those who take care of old people often wear blue.
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