成人英语三级考试

【单选题】There is no doubt that he is a good professor ______ he is doing fine.


A．but
B．because
C．so
D．yet

网考网参考答案：B
网考网解析：
because引导出“他绝对是一位优秀教授”的判断根据：他干得很好。 查看试题解析出处>>