例題1.A bird lives in a tree (in a river)-->Does a bird live in a river?No,it doesn't.
2.Danny goes to school by bike.(on foot)-->
3.A tiger eats meat.(vegetables)-->
4.Danny wants to buy some ice cream.(a new dress)-->
例題1.They are sitting in the lab.(in the library)-->Are they sitting in the library?NO,they.aren't
2.Li Ming is watching TV at home.(in the classroom)-->
3.They are singing a song for Jenny.（for Danny)-->
4.The lion is eating meat at the Zoo.(in the forest)-->