—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

It's helpful to put children in a situation ________ they can see themselves differently.

A．that D B．when C．which D．where

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 house ________ I grew up has been taken down and replaced by an office building.

A．in it B．in C．in that D．in which

She brought with her three friends，none of ________ I had ever met before.

A．them B．who C．whom D．these

Whenever I met her，________ was fairly often，she greeted me with a sweet smile.

A．who B．which C．when D．that

Gun control is a subject ________ Americans have argued for a long time.

A．of which B．with which

C．about which D．into which

She'll never forget her stay there ________ she found her son who had gone missing two years before.

A．that B．which C．where D．when

A person ________ e?mail account is full won't be able to send or receive any e?mails.

A．who B．whom C．whose D．whoever

I travel to the Binhai New Area by light railway every day，________ do many businessmen who live in downtown Tianjin.

A．as B．which C．when D．though