They _ on the programme 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 worked; were still working |
| D．have worked; are still working |
Many lifestyle patterns do such ______ great harm to health that they actually speed up ______ weakening of the human body.
| A．a ; / | B．/ ; the | C．a ; the | D．/ ; |
He lived in a small village, ______ was a long way from the railway station.
| A．that | B．which | C．where | D．when |
Many visitors will have to wait for another two hours ______ the heave rain.
| A．instead of | B．because of | C．in case of | D．in spite of |
I ______ for Beijing in a few days. Do you know when the earliest plane ______?
| A．leaves, takes off | B．is leaving, is taking off |
| C．am leaving, takes off | D．leave, is taking off |
The computer centre, ____ last year , is very popular among the students in this school.
| A．open | B．opening | C．having opened | D．opened |