This is an illness that can result in total blindness if_______.
| A．to leave untreating | B．left untreated | C．leaving untreating | D．is left untreated |
-What do you supposeher look so upset ?
-by her boyfriend again.
| A．making; Misunderstood | B．made;Being misunderstood |
| C．has made;Be misunderstood | D．had nade; Having been nisunderstood |
Our company’s development will not standof anyone, nor will it threaten anyone.
| A．in the way | B．in a way | C．on the way | D．by the way |
-Why does the lake smell terrible?
-Because large quantities of water.
| A．is being polluted | B．have been polluted |
| C．is polluted | D．has been polluted |
The world economic crisisin 2008, but the global economy began to recover in the second half of 2009.
| A．rose | B．raised | C．aroused | D．arose |
-You won’t go to Mary’s birthday party, will you?
-Yes, I’m invited.
| A．even if | B．unless | C．if | D．though |