練習問題
問1
I ( ) ill in bed since last Friday. (東海大)
1. am / 2. was / 3. have been / 4. shall be
問2
Tom ( ) home just now. (拓殖大)
1. comes / 2. came / 3. has come / 4. had come
問3
It ( ) twenty years since I saw you last. (愛知学院)
1. was / 2. will be / 3. has been / 4. had been
【解答】
問1→3 / 問2→2 / 問3→3