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 |
Sentences can be ________ into clauses, and clauses into phrases.
| A．broken in | B．broken through | C．broken up | D．broken away |
I gave him a present but he gave me nothing ________
| A．in cash | B．in relief | C．in charge | D．in return |
October 1st, 1949 is the day ________ the People’s Republic of China was founded.
| A．on which | B．in which | C．that | D．which |
It doesn’t make any difference how we get there because we’re going to be late________.
| A．however | B．therefore | C．anywhere | D．anyway |
We don’t doubt ________ our team will win because we are the best.
| A．whether | B．that | C．how | D．why |