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ひととおり解いてみました

D (1) 〇
(2) 〇
(3) had never talked
(4) 〇

E (1) I had never eaten mutton before I went to Hokkaido.
(2) Lily had been watching a movie for two hours when her mother came home.
(3) By the time Ryo arrives home, the drama will have finished.

まい

最後の英作文の例です
(4) I found I had left my smartphone on the bus.

うり

丁寧にありがとうございます!
理解できました〜

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