受動態の少し難しめの問題を解説してみました(^^)/
動画を見てみよう！
補足動画
問題はこちら
How much was the cost first thought ( )? （京都産業大）
1 as
2 of
3 so
4 to be
解説はこちら
能動態：S think of O as C
受動態：O is thought of as C
能動態：S think O to be C
受動態：O is thought to be C
元の形：think the cost to be [いくら]
➡ 能動態：S thinks the cost to be [how much]
➡ 受動態：the cost is thought to be [how much]
➡ 疑問詞を前に：[How much] the cost is thought to be
➡ 疑問文に：[How much] is the cost thought to be?
