I had just stepped out of the bathroom___ I heard the steps．
| A．while | B．when | C．since | D．after |
I had hardly got to the office___my wife phoned me to go back home at once
| A．when |
| B．than |
| C．until |
| D．after |
It was not a long time___we realized the truth
| A．when |
| B．until |
| C．since |
| D．before |
I cannot understand why Libya will become so complicated___I understand more from the medium
| A．after |
| B．before |
| C．while |
| D．when |
Several weeks had gone by___he realized the painting was missing
| A．as |
| B．before |
| C．since |
| D．when |
The thief___her purse and ran away
| A．picked |
| B．selected |
| C．snatched |
| D．elected |