Jasmine was holidaying with her family in a wildlife park she was bitten on the leg by a lion.
A. when
B. while
C. since
D. once
网友回答
(答案→)A. when
B. while
C. since
D. once
解析：Jasmine和家人在野生动物园度假的时候，被狮子咬伤了腿。when在本句中为并列连词，意为：and just at that time。如：
I was wandering through the street when I caught sight of a tailor’s shop.(并列连词)
=I caught sight of a tailor’s shop when/while/as I was wandering through the street.(从属连词)