I have P.E. ______ the afternoon of Tuesday. [ ]

Playing with _______ robot is _______ unusual experience for me.

The students were all tired, but ___ of them stopped to have a rest．

I hear you have moved into your new house .Congratulations ! -—Thanks. I especially like my study _______ is big and bright.

Look! The light is still on. Is Mr Wu working in his office？—No, it _____ be Mr Wu. He has gone to Nanjing for a meeting.