Many provinces in China were attacked by such terrible snowstorms this early winter ______ few people had experienced before, ______ made us worry about global climate changes.
A.that; that | B.as; which | C.which; it | D.when; as |
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Many provinces in China were attacked by such terrible snowstorms this early winter ______ few people had experienced before, ______ made us worry about global climate changes.
A.that; that | B.as; which | C.which; it | D.when; as |