This is the very knife _____ I used to cut apples yesterday.
I don’t think that your speech _____to the crowd, for they appeared quite puzzled.
Christmas is _____special holiday when _____whole family are supposed to get together.
Generally speaking, the culture and customs of America are like _____ of Canada.
---- Putting on a happy face not only helps us make friends but also makes us feel better. ---- _______.
The Human Development Report shows that we are making progress in many different aspects but ______we need to make great efforts.