It is_______ he often fails in exam_______ makes his parents worried about him.
| A．because, that | B．that, that | C．不填, that | D．what, that |
Although cats can not see in complete darkness, their eyes are much more ______ to light than human eyes.
| A．brilliant | B．attractive | C．available | D．sensitive |
Seeing the road ________ with snow, they had to stay at home, watching TV and drinking coffee.
| A．blocking | B．blocked | C．to block | D．to be blocked |
Following Christianity, witnesses have to _______ on the Bible to tell the truth.
| A．put | B．depend | C．swear | D．agree |
Don’t mention that at the beginning of the story, or it may _______ the shocking ending.
| A．give out | B．give away | C．give up | D．give off |
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 |