A.who | B.which | C.that | D.why |
A.that | B.where | C.which | D.what |
A.when | B.that | C.which | D.what |
A.after which | B.where | C.in which | D.which |
A.when; to come | B.which; to come |
C.when; to came | D.which; to came |
A.since | B.when | C.after | D.until |
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