I don’t really work here, I _____ until the new secretary arrives.
| A．just help out | B．have just helped out |
| C．am just helping out | D．will just help out |
It was some time _______ we realized the truth.
| A．when | B．until |
| C．since | D．before |
Roses need special care _______ they can live through winter.
| A．because |
| B．so that |
| C．even if |
| D．as |
This photo of mine was taken _______ stood the famous Eastern Bright Pearl in Shanghai.
| A．which |
| B．in which |
| C．where |
| D．there |
You should made it a rule to leave things _______ you can find them again.
| A．when | B．where |
| C．then | D．there |
In time of serious accidents, _______ we know some basic things about first aid,we can save lives.
| A．whether | B．until |
| C．if | D．unless |