Question

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

Answer 1

答案：A
解析：

while引導的句子中謂語動詞為延續性動詞或狀態性動詞；when引導的句子中謂語動詞為延續性或非延續性動詞，也可是狀態性動詞。bit是非延續性動詞。