求大神改下从句,there has been much discussion over the years about ___American astronauts did

题目

求大神改下从句,there has been much discussion over the years about ___American astronauts did
there has been much discussion over the years about ___American astronauts did land on the moon in 1969

答案

是不是whether,did land on the moon 可以理解为强调结构
意思是 这些年来对于美国宇航员是否真的在1969年登月备受争议