—The experiment is of particular importance.
—I see. We will carry on with it ________ we can get enough money.
| A．unless | B．though | C．whether | D．until |
I was born in New Orleans，Louisiana，a city ________ name will create a picture of beautiful trees and green grass in our mind.
| A．which | B．of which | C．that | D．whose |
It's helpful to put children in a situation ________ they can see themselves differently.
| A．that D | B．when | C．which | D．where |
—What do you think of teacher，Bob?
—I find it fun and challenging.It is a job ________ you are doing something serious but interesting.
| A．where | B．which | C．when | D．that |
In some places women are expected to earn money ________ men work at home and raise their children.
| A．but | B．while | C．because | D．though |
There were some chairs left over ________ everyone had sat down.
| A．when | B．until | C．that | D．where |