问题
填空题
Fill in the blanks with can or can't. 用can或can't.填空，完成句子。
1. A duck swim. A chicken swim.
2. A bird fly. A pig fly.
3. A donkey run. A horse run.
4. A rabbit write. A boy write.
答案
1. can can't 2. can can't 3. can can 4. can't can