You can’t imagine this lake used to be a beautiful place in our province .
| A．at any time | B．at one time | C．in no time | D．at times |
________ the course very difficult，she decided to move to a lower level.(2013·北京，24)
| A．Find | B．Finding |
| C．To find | D．Found |
Volunteering gives you a chance ________ lives，including your own. (2013·北京，21)
| A．change | B．changing |
| C．changed | D．to change |
I got to the office earlier that day，________the 7∶30 train from Paddington.
(2013·大纲全国，25)
| A．caught | B．to have caught |
| C．to catch | D．having caught |
The witnesses ________ by the police just now gave very different descriptions of the fight. (2013·陕西，14)
| A．questioned | B．being questioned |
| C．to be questioned | D．having questioned |
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 |