---You must obey every word of mine!
---_______ I don’t?
| A．How if | B．What if | C．Even if | D．Only if |
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 |