To the foreigners, the Great Wall is worth ______.
Sam enjoys ______ stamps.And now he has 226 of them.
He has ______ friends.He always keeps himself alone at home.
Supposing someone__________ you had been lying, what would you do?
The reason __________he gave for not coming to your birthday party is _________his mother was ill.
Nowadays, many people________about eating habits _________what they believe.