(2011年温州十校联考)—Where is Lucy?

—I can’t say where she is，but she________have gone to meet her classmates，for they want to go to Sichuan to work as volunteers.

A．can                       B．should

C．must                     D．may

 (2011年湖南十二校联考)________she is not so cheerful________she used to be?

A．How is it that；as                       B．Why is it that；what

C．Is it why；that                    D．How it is that；as

 (2011年皖南八校联考)It is only 6.7% of Korean students________have ever read Chinese books or watched Chinese TV programs.

A．which                          B．whoever

C．that                              D．what

 (2011年浙江金华十校联考)Not until the press reported the pollution________why the water supply had been cut off.

A．people did know                   B．people had known

C．had people known                       D．did people know

（2011·浙江温州十校联考）Pirates from Somalia who hijacked _____European carrier in ______ Indian Ocean threatened to kill its 25 crew members if any rescue operation was attempted.

      A．the; 不填           B．a; the                  C．the; a                  D． the; the