Why the explosion occurred was______the laboratory attendants had been careless.A．owing to

Why was Anna willing to help the poor？ ________________________.

The reason why 1994 was exceptional is that __A．it saw an unusually large number of touris

After the explosion, the factory was a ______of total confusion.A．situationB．sceneC．viewD．

The reason why many production processes were taken by the marketplace was that ______.A．i

The reason ______ I came late for the meeting was that my car broke down. A：why B：becau

The reason why many production processes were taken over by the marketplace was that______