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Was it in 1969 _____ the American astronaut succeeded_____ landing on the moon?

A．when；on    B．that；on     C．when；in     D．that：in

. Was it in 1969 _____ the American astronaut succeeded_____ landing on the moon?

A．when；on    B．that；on     C．when；in     D．that：in

Was it in 1969 _____ the American astronaut succeeded ____ landing on the moon?

Was it in 1969 _____ the American astronaut succeeded ____ landing on the moon?

A．when; on         B．that; on           C．when; in          D．that; in

Was it in 1969       the American astronaut succeeded    landing on the moon?

    A．when；on    B．that；on    C．when；in   D．that：in

Was it in 1969______ the American astronaut succeeded ______ landing on the moon?

—Was it in 1969___________the American astronaut succeeded___________landing on the moon ?

    —Yes , that’s right .

         A．when ; on          B．that ; on   C．which ; in D．that; in

—Was it in 1969________the American astronaut succeeded________ landing on the moon?

—That's right.

A．when; on  B．that; on

C．which; in  D．that; in