A.when | B.than | C.before | D.since |
A.that | B.why | C.because | D.which |
A.if | B.while | C.though | D.before |
A.can; when | B.would; because | C.may; if | D.must; when |
A.or | B.and | C.but | D.while |
A.that; that | B.where; that |
C.where; which | D.that; which |
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