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
A few years ago, My Heart Will Go On was a popular song among young people, ______ were often heard singing it at parties.
A．who B．which C．they D．that
Stand over there ___ you’ll be able to see the oil painting better.
A．but B．till C．and D．or
