Experts at the conference agreed that such a product with environmentally friendly technology is ______.
| A．worth being promoted | B．worthy promoting |
| C．worthy of promoting | D．worthy of being promoted |
The singer and dancer ________ come to the party tonight.
| A．is to | B．are to |
| C．are going to | D．was to |
—Take this medicine three times a day，Tom!
—Do I have to take it？It ________ so terrible.
| A．is tasting | B．is tasted |
| C．tastes | D．has tasted |
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 |