If he _______, don’t interrupt him.
| A．still works | B．is still working |
| C．still had been working | D．will still be working |
. The post-Expo fate of foreign pavilions, especially those _____ tens of millions of dollars, has aroused strong interest among the public.
| A．cost | B．costing | C．having costed | D．costed |
______abroad for a tour can be a worthwhile experience to a senior high student.
| A．Taking | B．Taken |
| C．Being taken | D．Having been taken |
It was a pity that the great writer died with his work _______.
| A．to be finished | B．finished |
| C．unfinished | D．not having been finished |
It is the farm to which we are going to pay a visit ______ provides large quantities of green vegetables for the nearby town every year.
| A．which | B．that | C．where | D．to which |
If you have never planted anything, you won’t be able to know the pleasure of watching the thing you have planted ____.
| A．grow | B．to grow | C．growing | D．to be growing |