32. - He failed his exam again. - But what did you _____? Had he ever been working hard?
The Great wall is the only one of the buildings on the earth_____ seen from the moon.
Is there anything ________ I can do for you?
This is the first American film _______ I have ever seen.
Guilin is a city _______ has a history of more than 2,000 years.
One million people of the city, ______ thought little of the event, were asleep as usual that night.