I can never forget the days _____ we worked together and the days ______ we spent happily together.
A.when; which | B.which; when | C.for which; that | D.on which; when |
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I can never forget the days _____ we worked together and the days ______ we spent happily together.
A.when; which | B.which; when | C.for which; that | D.on which; when |