2 各文に続くものを, 下の(a)~(d)から選びなさい。また, それぞれの文が,ア完了·結果,経験
の継続のどれを表すかを記号で答えなさい。AB
1. When it started to rain,
2. Before she came to Japan,
チ ク
3. Until the library closed,
4. By the time he went to London,
aTR
(a) she had visited some other Asian countries.
6
のう
(b) they had been reading.
nbisw
(c) he had already mastered English.
つる
(d) we had been hiking for halfa day.