A.which | B.them | C.whom | D.who |
A.what | B.which | C.where | D.that |
A.both of which | B.none of which | C.neither of which | D.neither of them |
A.they both | B.which both |
C.both of them | D.both of which |
A.which | B.that | C.of which | D.of that |
A.that | B.which | C.where | D./ |
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