问题 填空题 选词填空。A. in B. on C. under1. The pen is _____________ the pencil case.2. The pen is _____________ the chair.3. The cat is _____________ the desk. 答案 1. A 2. B 3. C
The pen is _____________ the pencil case.
The pen is _____________ the chair.
The cat is _____________ the desk.