A.whether | B.in which | C.where | D.unless |
A.If | B.Unless | C.Though | D.Since |
A.Because | B.Since | C.While | D.If |
A.before long | B.soon after | C.long before | D.long after |
A.which | B.where | C.that | D.in which |
A.Since | B.Whether | C.Although | D.As |
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