As the supermarket _______, all the goods are sold at half price.
| A.has closed down | B.is closing down | C.closed down | D.had closed down |
—Will you attend the meeting this afternoon?
—But I ________ told anything about it.
| A.wasn't | B.am not | C.haven't been | D.won’t be |
They ______ on the program for almost one week before I joined them, but still no good results _______ so far.
| A.had worked ; come out | B.have worked ; came out |
| C.had been working ; have come out | D.have been working ; have come out |