．I really don’t know _______I kept the secret papers．
| A．where was it | B．it was where that |
| C．where it was that | D．where was it that |
—I would like to pick up your sister for you. But I don’t know her. _____?
—A middle-aged woman with a round face, wearing a red blouse.
| A．How about your sister |
| B．What do you think of your sister |
| C．What is your sister like |
| D．What does your sister do |
There are trees and flowers along both sides of the road______ our school.
| A．leading to | B．defeated | C．won | D．gained |
________ , we had to go home.
| A．There was no bus | B．We couldn' t find a bus |
| C．There being no bus | D．There no bus |
I have many friends, ______ some are businessmen.
| A．of them | B．from which | C．who of | D．of whom |
There was _____ time ______ Irap was one of the strongest countries in the world.
| A．a when | B．a that | C．that that | D．the when |