Students are encouraged to _________ the design competition for robots at the university.
| A．take part | B．operate | C．join to | D．participate in |
________ clearly ________ nothing to do, the soldiers left the village the next day.
| A．It; was | B．It; being |
| C．There; was | D．There; being |
—I regret ________ you that your application has not been successful.
—Not successful? I performed pretty well in my interview!
| A．informing | B．to inform |
| C．having informed | D．to have informed |
—Hi, Kathy! Any plans for tonight?
—Not yet, Tim. I ________ where to go for dinner.
| A．was wondered | B．was wondering |
| C．will wonder | D．had wondered |
Mary ________ as a secretary in this company for twenty years and now she stays at home taking care of her own garden.
| A．has served | B．had served |
| C．is serving | D．served |
They ________ to go shopping in the downtown district, but they cancelled it because of a hard rain.
| A．had intended | B．intended |
| C．have intended | D．were intending |