— Excuse me, Maria. May I borrow your pen?
| — Excuse me, Maria. May I borrow your pen? — Sure. Here you are. But you must return it _____ time. |
| [ ] |
| A.in B.at C.on D.to |
可能相似的问题
你能帮帮他们吗
| — Excuse me, Maria. May I borrow your pen? — Sure. Here you are. But you must return it _____ time. |
| [ ] |
| A.in B.at C.on D.to |
你能帮帮他们吗