They studied what ______ since 2007 and found Australian electricity prices were among the highest in the developed world.
| A．has happened | B．happened | C．had happened | D．has been happening |
The servant did _____ she could ______ the revolutionary.
| A．what, help | B．that, to help | C．what, to help | D．all help |
If you ______ the medicine you ______ better now.
| A．took ; would feel | B．had taken; felt |
| C．had taken; would feel | D．took; would have felt |
A fish needs water and without water it will die. _______.
| A．so does a man | B．so will a man |
| C．so it is with a man | D．so is it with a man |
How pleased the Emperor was _____ what the cheats said.
| A．hearing | B．heard | C．hear | D．is hear |
______ the two oceans the Pacific is ______.
| A．In; the larger | B．For, larger |
| C．Of; larger | D．Of; the larger |