2.次の~の3つの文の( )に共通に入る語を①〜④から選びなさい .
a. (
) it not for examinations at school, students' attitudes would be very different.
b. He is twenty but is still, as it ( ), a grown-up baby.
c. If she (
Ⓡ is
) in your position, she would not accept such a foolish offer of marriage.
③ was
[神戸薬科大
be
were