单项选择题
A．在太晚之前应该立即采取措施来保护环境。 B．在天黑之前，应该采取保护环境的措施。 C．应该立即采取措施保护环境，否则为时已晚。 D．应该立即采取措施保护环境，否则天要黑了。
It can be inferred that the writer is probably a（） A．si...
单项选择题It can be inferred that the writer is probably a（）
A．singer B．sufferer C．doctor D．tourist
From the passage, insomnia results from（） A．interruptio...
单项选择题From the passage, insomnia results from（）
A．interruption of the ordinary sleep pattern B．being unable to sleep C．keeping awake at night D．drugs to treat a special disease
A mild sleeping pill can help a person to（） A．spend mor...
单项选择题A mild sleeping pill can help a person to（）
A．spend more time sleeping B．recover their normal sleep pattern C．keep awake at night D．compensate for their missing sleep
