I am disappointed because I ________my favourite writer yet

I am afraid of ______ mistakes.

The strange man asked me to hand the letter to _____ I met in the police station, saying it was very important.

Have you heard that Jones, along with her parents,____to Hainan for the winter vacation? — Really? No wonder I haven’t seen her these days

Which hotel did you stay in last week?— Well, just the one _______I think you once met Ge You and his family.