---- Why is the cake so expensive?
---- Maybe you don’t know a cake made of wheat costs less than _____ made of rice.
| A．one | B．that |
| C．the one | D．another |
If he takes on this work,he will have no choice but___an even greater challenge
| A．meets |
| B．meeting |
| C．meet |
| D．to meet |
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 |