Huge trees on the green land were cut down, ____ the city being buried by sand.
| A．led to | B．caused | C．resulting in | D．being caused |
It seems that water from this tap ________ for some time.We'll have to take it apart to put it right.
| A．had leaked | B．is leaking |
| C．leaked | D．has been leaking |
—I hear Jane has gone to the Holy Island for her holiday.
—Oh，how nice！Do you know when she ________？
| A．was leaving | B．had left |
| C．has left | D．left |
The discussion ________ alive when an interesting topic was brought in.
| A．was coming | B．had come |
| C．has come | D．came |
My mind wasn't on what he was saying，so I'm afraid I ________ half of it.
| A．was missing | B．had missed |
| C．will miss | D．missed |
All the preparations for the task ________，and we're ready to start.
| A．completed | B．complete |
| C．had been completed | D．have been completed |