1.We found____out___the answer____of__the queastion____at _last.
2.They are going to be ___on__ holiday in Xi'an.
3.I saw the boy two years ago,but I can't think __of_ his name now.
1.We found____out___the answer____of__the queastion____at _last.
2.They are going to be ___on__ holiday in Xi'an.
3.I saw the boy two years ago,but I can't think __of_ his name now.