The flights ______because of the snowstorm, many passengers could do nothing but take the train.
A. had been cancelled
B. have been cancelled
C. were cancelled
D. having been cancelled
The decision _______, the next problem was how to make a good plan.
A. having made
B. having been making
C. having been made
D. been made
The teacher walked into the classroom, ______.
A. with a book in his hand
B. hand with a book
C. being with a book in hand
D. to have a book in hand
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