関係代名詞：先行詞と同一のものを表す。「どちら」とは訳せない。
［疑問文］
- Which do you use?
- Which house did you live in?
- Which travels faster, light or sound?
- Which is the shortest way to the station?
- Which do you like better, tea or coffee?
- Which team is the most likely to win the championship?
［疑問代名詞と関係代名詞］
- I don't know （that）which you used.
- I don't know the party which you used.
［疑問代名詞が含まれる節（間接疑問文）では接続詞は省略され名詞節となる］
- Which travels faster, light or sound?
→ I don't know （省略） which travels faster, light or sound. - I know （省略）which way Tom went.
- It doesn't matter （省略）which side you're on.
［間接疑問文の名詞節］
- Tom can't decide which approach to take.
- The driver told us which bus we should take.
- Time will show which of us is right.
- The teacher asked me which book I liked.
［関係代名詞］
- Kate found the watch which she had lost.
- Tom has bought a house which has six rooms.
- I received a letter which was written by her.
- The road which leads to the hotel is narrow.
- This is the camera which I bought yesterday.
- The town in which I live is rather small.
- Tom said he was ill, which was a lie.
課題 #01
