Was it in 1969 ____, the American astronaut succeeded in landing on the moon?
举一反三
- Was it in 1969 _____ the American astronaut succeeded _____ landing on the moon ?
- Was it is 1969（）the American astronaut succeeded（）landing on the moon A: when, on B: that, on C: where, in D: that, in
- Was it in 1969 ______ the American astronaut succeeded ______ landing on the moon A: when; on B: that; on C: which; in D: that; in
- Was it in 1969 ______ the American astronaut succeeded ______ landing on the moon A: when; on B: B. that; on C: which; in D: D. that; in
- Was it in 1969 () the American astronaut succeed()lauding on the moon A: when; on B: that; on C: which; in D: that; in