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 |
The early train is ________ to leave at five in the morning.
| A．due | B．possible | C．sure | D．probable |
—How are you today?
—Oh, I ________ as ill as I do now for a very long time.
| A．didn’t feel | B．wasn’t feeling |
| C．haven’t felt | D．don’t feel |
Police are now searching for a woman who is reported to ________ since the flood hit the area last Friday.
| A．get lost | B．lost |
| C．be missing | D．have been missing |
Just in front of our house ________ with a history of 1,000 years.
| A．does a tall tree stand | B．a tall tree stands |
| C．a tall tree is standing | D．stands a tall tree |
They ________ the plan for almost three hours, but they haven’t reached any conclusion.
| A．discussed | B．have discussed |
| C．have been discussing | D．were discussing |