【题目】Mike was usually so careful, ________this time he made a small mistake.
A.yet
B.still
C.even
D.thus

【答案】A
【解析】句意：句意：麦克通常很认真的，然而这次他犯了个小错误。A.yet"然而"; B.still"仍旧"；C.even"甚至"；D.thus"因此"，根据句意，选A。