—Have you finished reading The Adventures of Tom Sawyer?
—No, I my diploma paper all day yesterday.
| A．write | B．had written |
| C．was writing | D．would write |
She told me that it had been worrying her much ________ her hair was turning gray.
| A．because | B．if | C．for | D．that |
There is no doubt that ________ a goal, one needs not only knowledge but also good personalities.
| A．realizes | B．realizing | C．being realized | D．to realize |
The manager had no plan to travel abroad with many problems ________.
| A．being unsolved | B．unsolved | C．to be unsolved | D．unsolving |
–Why do you know so much detail about the accident?
--I ________ a walk nearby when it happened.
| A．had | B．had had | C．was having | D．would have |
Wherever you prefer to work after graduation, ________ close contacts with your family members.
| A．keep | B．keeping | C．to keep | D．kept |