问题
选择题
_______ I know the exam isn’t difficult, I shall not worry about it.
A．As long as
B．As far as
C．In case
D．Even if
答案
答案：B
题目分析: 句意：就我所知这次考试不难，我不用对此担心。A只要；B就……所知；C万一；D即使。as far as sb know “据某人所知”,根据句意可知答案选B。