【题目】请用所给的代词填空。
this,that,these,it
1. _______keysaremine.That isyours.
2. What's________?It'sanegg.What's________overthere?It'sanorange.
3. Lookat________pencils.AretheyLucy's?No,thesearen’thers.
4. Hi,Mum,________ismyfriend,Lucy.
5.Whatisit? ________isanapple.
【答案】1. These 2. this, that 3. these 4. this 5. It
【解析】
略
