There are plenty of jobs ________ in the western part of the country.
| A．present | B．available |
| C．responsible | D．convenient |
For a moment nothing happened Thenall shouting together.
| A． | voices had come | B． | came voices | C． | voices would come | D． | did voices come |
It’s helpful to put children in a situation ______ they can see themselves differently.
| A．that | B．when | C．which | D．where |
-How amazing it is that astronauts are exploring outer space!
-It’s a challenge, I guess, ______ man against nature.
| A．of | B．for | C．by | D．about |
-Why does the Lake smell terrible?
-Because large quantities of water.
| A． | have polluted | B． | is being polluted | C． | has been polluted | D． | have been polluted |
–Bruce, I really appreciate your handwriting. 
- _______. .
| A．I practice every day | B．Thank you very much |
C．No, I don’t think so | D．Well, it’s not good enough |