问题
填空题
用适当的介词填空。
1. Mary is talking ____ the phone with her friend.
2. Jim is watching TV ____ the afternoon.
3. Alice is playing ____ the computer.
4. Jack is lying ______ his bed.
5. It's time _____ bed.
答案
1. on 2.in 3.on 4.on 5.for