If they had recognized her, they _____ to her.

A. has left                     

B. left                           

C. had left       

D. has been leaving

A. would go                

B. today                      

C. fine                         

D. if

A. was wearing/met      

B. were wearing/met     

C. wore/met        

D. wore/had met

A. To lose                    

B. Having losing          

C. Having lost              

D. Lost

A. amused

B. amusement                      

C. amuse

D. amusing

A. to get people to know more about their host and hostess.

B. to make new friends.

C. to help people to know each other better.

D. to entertain people.

B. staying                     

C. stay                          

D. to stay