【单选题】The new machine failed to ______ the garbage. As a result, the kitchen was filled to bursting with smelly leftovers.
【单选题】The ____ is that the new machine will arrive tomorrow.
【简答题】(A) machine (B) new way (C) helping hand (D) chance
【简答题】The new machine ought to (test) ______ before it is put to use.