They had to get a helicopter to rescue him______.
A. because the fire brigade’s ladders were too short to reach him
B. because the fire engine was not powerful enough
C. because there was no way to get a ladder up to the roof
D. because the fire brigade arrived too late to save the house
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听力原文：M: John is a head taller than Mary and Shelly.
W: Yes, But Sam is much taller than John.
Q: Who is the tallest among the four？
(5)
A. John.
B. Sam.
C. Mary.
D. Shelly.
Brownlow Hall was built______.
A. on the River Don
B. 60 years ago near South Dean
C. sometime in the 19th century
D. at the foot of Potter’s Hill
The SCN
A. is regulated by the hypothalamus.
B. is affected by fading light.
C. is located in the brain.
D. tells the body it is time for sleep.
国家实行劳动者每日工作8小时、每周工作40小时的标准工时制度。（）
A. 正确
B. 错误
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