A.which/ that | B.which/ what | C.that/ which | D.where/ that |
A.when | B.that | C.as | D.which |
A.that | B.whether | C.what | D.if |
A.when | B.after | C.until | D.before |
A.Who; that | B.How; what | C.What; that | D.Where; what |
A.as | B.which | C.what | D.it |
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