－Mary, how did your Math test go?
－I had thought I _________, but in fact I came in the top 10% in my class.
| A．should have failed | B．couldn’t have failed |
| C．might have failed | D．shouldn’t have failed |
Soon children in the camp had many new friends, ________they shared food, stories and projects.
| A．for whom | B．with whom |
| C．of whom | D．to whom |
Take your time—it's not________long distance from here to________ hotel you are going to.
| A．不填；the | B．a; the |
| C．the; a | D．不填；a |
—What qualities does a person need to become an astronaut?
—He ________be knowledgeable，independent and creative.
| A．can | B．may |
| C．would | D．should |
Li Gang was required to apologize ________the people present at the meeting________what he had done.
| A．for；by | B．with；about |
| C．to；for | D．at；with |
—Have you heard that George quit his job?
—Yeah, but I can't________why he did so.
| A．put out | B．figure out |
| C．carry out | D．send out |