用is, am 或are 填空
(1)Excuse me. What _______ this in English?
(2)________ the your coat, Mr Green? No, it _________ not.
(3)What ________ these? ___________ they maps?
(4)This __________ your bike. Where __________ my bike?
(5)I __________ in Class Eleven. What class ___________ you in?