She looks young, ( ) she is over 50. [青雲高]
(1) because (2) though (3) till (4) when
He arrived at the park. Just then it began to rain.
= ( ) ( ) ( ) he arrived at the park, it began to rain. [愛光高]
Hanako hardly ever goes out any more, even with friends, ( ) she's married and has two kids. [センター]
(1) unless (2) now that (3) as soon as (4) in case