Eye doctors recommend that a child’s first eye exam ____at the age of six months old.
| A．was | B．be | C．were | D．is |
The room is empty except for a bookshelf ________ in one corner.
| A．standing | B．to stand |
| C．stands | D．stood |
The witnesses ________ by the police just now gave very different descriptions of the fight.
| A．questioned | B．being questioned |
| C．to be questioned | D．having questioned |
________ in the early 20th century, the school keeps on inspiring children's love of art.
| A．To found | B．Founding |
| C．Founded | D．Having founded |
________ which university to attend, the girl asked her teacher for advice.
| A．Not knowing | B．Knowing not |
| C．Not known | D．Known not |
George returned after the war, only ________ that his wife had left him.
| A．to be told | B．telling |
| C．being told | D．told |