— _______ you got to know my telephone number?
— Through a friend of yours.
| A．How was it |
| B．How was it that |
| C．Was it how that |
| D．How did |
Don’t worry! All the problems will be settled ________ we join hands.
| A．only if | B．if only | C．what if | D．even if |
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 |