---Are Bob’s pens ____ the pencil case? ---Yes, _____ are.
--- Mum, have you seen my mobile phone? --- _________you bought last week? I’m sorry I haven’t seen _________.
--- Do you like _______four-D film? --- Yes, it is like _______magic.
I expected to know who_________.
The Great Wall is _________of Chinese culture.
We like movies __________ sound and music.