Why does the author mention the fire extinguisher hose in paragraph 2？
A．To emphasize the unsafe working conditions
B．To show the manager's leadership skills
C．To illustrate the factory's modem technology
D．To explain how the fire was eventually put out
A．Sleep as soon as possible.
B．Nap even during daytime.
C．Get a good night's sleep.
D．Relax yourself in a cafe.
They look so much like each other that you can't tell which is ______.
A．who
B．whom
C．which
D．that
__ there is something else to discuss, I will declare the meeting closed.
A．As
B．Though
C．Unless
D．While
If you want to change to a double room you'll have to pay __ 50 Yuan.
A．an extra
B．other
C．more
D．each
The question "How do you feel？" seems to be suitable when asked of ______.
A．a man walking in the street
B．a friend who has fallen ill
C．a person having lost a close friend
D．a stranger who looks worried