A. She worked very hard in difficult conditions.
B. She worked very hard but she still lived in difficult conditions.
C. She worked very hard even though her living conditions were difficult.
D. She worked very hard because her living conditions were difficult.
A. The results of the research are not alarming but impressive.
B. The results of the research are alarming but not impressive.
C. The results of the research are not either impressive or alarming.
D. The results of the research are both impressive and alarming.
A. Mark would like to teach.
B. Teaching is not interesting to Mark.
C. Mark didn't think teaching is interesting.
D. Mark knows how to teach.
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