A.better than | B.by accident | C.instead of | D.rather than |
A.and | B.so | C.although | D.but |
A.our;, interesting | B.us; boring |
C.us; lively | D.our, surprising |
A.Though; / | B.Though; but |
C.Till; / | D.Until; then |
A.or | B.and | C.but | D.so |
A.if | B.as | C.unless | D.when |
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