The students _____ busily when Miss Brown went to get a book she ____ in the office.
A.had written; left | B.were writing; has left |
C.had written; had left | D.were writing; had left |
推荐套卷
The students _____ busily when Miss Brown went to get a book she ____ in the office.
A.had written; left | B.were writing; has left |
C.had written; had left | D.were writing; had left |