A.that | B.which | C.where | D.when |
A.who; why | B.what; how | C.which; when | D.that; that |
A.of which | B.what | C.that | D.with whom |
A.when | B.if | C.since | D.until |
A.Those | B.Who | C.Those who | D.Whoever |
A.if only | B.only if | C.even if | D.as if |
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