Mary and Kathy( )awake in their bedroom.A both are B are both C are all D all are

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Mary and Kathy( )awake in their bedroom.A both are B are both C are all D all are

Mary and Kathy( )awake in their bedroom.A both are B are both C are all D all are
Mary and Kathy( )awake in their bedroom.
A both are B are both C are all D all are

Mary and Kathy( )awake in their bedroom.A both are B are both C are all D all are
A
两者用both

B
both两个都
all三个或三个以上,排除C, D
both 和be动词的位置: be both, 所以答: B are both