想一想，选一选。

1. 当卡卡龙想知道小天的教室里有什么的时候，它应说：[ ]

A. What's in the classroom?

B. What's at the classroom?

2. 当你想说“这是一盏灯”的时候，你应说：[ ]

A. It's lights.

B. It's a light.

3. 当Lily想让Lucy打开灯时，她应说：[ ]

A. Turn on the light.

B. Turn off the light.

质押物质押登记与贷款发放应由（）个柜员处理。

A.1

B.2

C.3

D.4