A.if | B.when | C.as | D.Since |
A.when | B.whether | C.what | D.where |
A.as | B.as though | C.as well | D.even though |
A.either | B.though | C.meanwhile | D.as well |
A.until | B.before | C.since | D.after |
A.Regardless of | B.Whether | C.Even if | D.Even though |
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