I will never forget the days ________ we spent our holidays together.
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This is the reason _________ he was dismissed.
A. why
B. that
Last summer I visited the People’s Great Hall, in __________ many important meetings are held every year.
A. which
B. that
China is a country ______ has a long history.
A. which
B. where
The first place _________ they visited in London was the Big Ben.
A. where
B. that
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