The man didn’t know _________ the thief broke into the house and stole all his valuable things
| A．it was when that | B．when it was that | C．that it was when | D．was it when that |
A few days after the interview, I received a letter______me admission to the university.
| A．offering | B．offered | C．having offered | D．to be offered |
Bats are surprisingly long-lived creatures, some _______ a life span of around 20 years.
| A．had | B．having | C．have | D．to have |
According to the information from the airline, a small sinking part of the runway of the airport is _______ for the accident.
| A．to blame | B．to be blamed | C．to blaming | D．to be blaming |
Obviously the measures taken by the local government have_______ the solution to drinking water problems in this region.
| A．contributed to | B．referred to | C．turned to | D．devoted to |
--Do you know when the Chinese custom_________ from?
--It's hard to say. But its characteristics__________ the Tang Period.
| A．began; prove | B．started; show | C．dates; suggest | D．is; appear |