—The water was running all night long.

   —Yes. It seemed that John ______ . He was the last one to leave the lab.

    A. was to be blamed                   B. was to blame

    C. had been blamed                    D. should be blamed

---The water was running all night long.

---Yes. It seemed that John ______ . He was the last one to leave the lab.

1. A.
   was to be blamed
2. B.
   was to blame
3. C.
   had been blamed
4. D.
   should be blamed

---The water was running all night long.
---Yes. It seemed that John ______ . He was the last one to leave the lab.

1. A.
   was to be blamed
2. B.
   was to blame
3. C.
   had been blamed
4. D.
   should be blamed

—The water was running all night long.
—Yes. It seemed that John ______ . He was the last one to leave the lab.