问题
选择题
According to the rules of the factory, you can ask for leave ________ you have a doctor’s diagnosed note.
A．now that
B．on condition that
C．unless
D．even though
答案
答案：B
考查连词。A既然；B=if如果；C除非，如果…不;D 即使；结合句意可知B正确。句意：根据厂规，如果你有医生的诊断条，你就可以请假。