摘要： Was it in 1969 the American astronaut succeeded landing on the moon? A. when,on B. that,on C. when,in D. that:in
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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
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