Question

._____ you arrive in Ireland, you will quickly find yourself on the beautiful country roads.

A．Since

B．While

C．Once

D．Until

Answer 1

C

考查词义辨析。Since 自从，While 然而，Once 一旦，Until 直到，句意：一旦你到达爱尔兰，你很快会发现你踏上了一条美丽之路。所以选C。