---Did you visit the memorial?

---No．We ____it，but we spent too much time shopping．

A. needn’t have visited            B. can’t have visited  

C. could have visited                       D. must have visited

---Did you visit the memorial?---No．We ____it，but we spent too much time shopping．

A. needn’t have visited                          B. can’t have visited  

C. could have visited                            D. must have visited