____paragraph is a group of sentences about some related subject. Readers must know what the main idea of ___paragaph is in order to understand ___information they are reading.
| A．The ,a ,the | B．A,the ,the | C．A,a the | D．The ,the ,the |
Let those in need ________ that we will go all out to help them. (2013·陕西，13)
| A．to understand | B．understand |
| C．understanding | D．understood |
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 |