Having taken our seats, ______.
A．the professor began the lecture
B．the lecture began in no time
C．we were attracted by the lecture immediately
D．the bell announced the beginning of the lecture
She is _______ you could ever meet.
A．as a gentle girl as B．as gently a girl as
C．a girl as gentle D．as gentle a girl as
The red light above the elevator______ that he was at the tenth floor then.
A．suggested B．symbolized C．observed D．indicated
Nobody but doctors or nurses and those____ by Dr.Hu ____ to enter the patient’s room.
A．invited; is allowed B．are invited; are allowed
C．being invited; allowed D．invited; are allowed
They _____ on the program for almost one week before I joined them, and now, we ____on it as no good results have come out so far.
A．had been working; are still working
B．had worked; were still working
C．have been working; have worked
D．have worked; are still working
Lacking rain, many river in Yunnan province have ______ recently.
A．dried up B．dried out C．dried off D．dried at
