Question

ひめ

3番は、なぜwhichになるのか
4番では、なぜforが入ってくるのか
が分かりません💦

2.(a) These are the shoes. I paid $69.99 for them.
(b) These are the shoes ( which
odo b
)I paid $69.99 (tor
3,(a) Cindy left Japan yesterday. That made me sad.
(b) Cindy left Japan yesterday, ( which
) made me sad.
4/(a) This is the company. My father works for it.
(b) This is the company ( tor
)(which
)my father w
Ithoucht it safer

Answer 1

だ

3番→文全体が先行詞のときはwhichを使います
4番→it＝the company ＝which
前置詞forは関係代名詞とくっついて前に持って来ることが多いです