A.Till | B.Until | C.After | D.Since |
A.before | B.as | C.since | D.when |
A.Until | B.Since | C.After | D.Unless |
A.as | B.than | C.like | D.white |
A.besides | B.except | C.except for | D.except that |
A.not .. .but... | B.either.. .or... | C.neither.. .nor... | D.whether.. .or... |
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