You are sure to fail the test _________ you spend more time doing something helpful.
| A．because | B．but |
| C．when | D．unless |
All of us are ____ at the ______ result.
| A．surprising ,surprised | B．surprised ,surprising |
| C．surprising ,surprising | D．surprised ,surprised |
We must try _____ people _____ the animals in danger.
| A．stop,kill | B．to stop,killing |
| C．to stop,to killing | D．stop,to kill |
--Mary,would you like to visit the Science Museum with me?
---_______,but surfing the net seems more interesting.
| A．I’d love to | B．That’s right |
| C．You’re welcome | D．No problem |
---I feel tired and sleepy.
---Why not stop_____?
| A．to relax | B．relaxing |
| C．resting | D．to work |
She jumps _____of us four.
| A．far | B．farther |
| C．farthest | D．further |