方位介词的用法 — 英语填空题
题目
用 in, on, under, behind 填空。（每词限用一次）
1. The keys are ___ the box. Please close it and take them away.
2. My cat is ___ the bed. It is sleeping on the floor under it.
3. Look! The basketball is ___ the door, so you can't see it from here.
4. Tom's pencil is ___ the desk, on its top, next to his books.