A （多山的）country is one in which there are many mountains.
After graduating from high school, you will reach a point in your career ______ you need to decide what to do.
| A．that | B．what |
| C．which | D．Where |
Everyone likes to develop a close relationship ______ we trust each other.
| A．which | B．that |
| C．where | D．When |
The moment John will never forget is ______ Mr. Smith gave him a lot of valuable advice on how to improve his writing.
| A．that; that | B．that； when |
| C．when; that | D．when; when |
Soldiers stood next to a police truck，looking at the crime scene ______ a woman was gunned down in a poor neighborhood of the border city of Iran on October 18 ,2009.
| A．that | B．which |
| C．where | D．Why |
Mrs. Brown is so ______ about housework that few servants want to work for her.
| A．skillful | B．neat |
| C．particular | D．Special |