Living things are dying out quickly. Let’s ask ____ destroying them in the past years.
| A．what part people have been playing |
| B．people have played in |
| C．what part people have played in |
| D．people have been playing what part |
The airport ________ next year will help promote tourism in this area. (2013·四川，10)
| A．being completed | B．to be completed |
| C．completed | D．having been completed |
________ which university to attend，the girl asked her teacher for advice. (2013·四川，8)
| A．Not knowing | B．Knowing not |
| C．Not known | D．Known not |
There are some health problems that，when ________ in time，can become bigger ones later on. (2013·浙江，19)
| A．not treated | B．not being treated |
| C．not to be treated | D．not having been treated |
Lionel Messi，________the record for the most goals in a calendar year，is considered the most talented football player in Europe. (2013·江苏，24)
| A．set | B．setting |
| C．to set | D．having set |
________ in the early 20th century，the school keeps on inspiring children’s love of art. (2013·安徽，32)
| A．To found | B．Founding |
| C．Founded | D．Having founded |