This coat will lose its color ___________ it's washed.
| A．as | B．after | C．until | D．while |
There is only one more day to go ____ your favorite music group play live.
| A．since | B．until | C．when | D．before |
-Must I turn off the gas after cooking?
- Of course. You can never be ______ careful with that.
| A．enough | B．too | C．so | D．very |
Mr. Green stood up in defence of the 16-year-old boy, saying that he was not the one ______ .
| A．blamed | B．blaming | C．to blame | D．to be blamed |
Of the two sisters, Betty is _____ one, and she is also the one who loves to be quiet.
| A．a younger | B．a youngest | C．the younger | D．the youngest |
The manager believes prices will not rise by more than ____ four percent.
| A．any other | B．the other | C．another | D．other |