We must keep our room clean , for dirt and disease go , you know .
| A．hand in hand | B．step by step | C．from time to time | D．one after another |
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 |
The settlement is home to nearly 1,000 people，many of______left their village homes for a better life in the city.
| A．whom | B．which |
| C．them | D．those |
The newlybuilt cafe，the walls of______are painted light green，is really a peaceful place for us，especially after hard work.
| A．that | B．it |
| C．what | D．which |
A person ______ e－mail account is full won't be able to send or receive any emails.
| A．who | B．whom |
| C．whose | D．whoever |
—What do you think of teaching, 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 |