问题
填空题
用所给词的正确形式填空。
1. Why _________ (not) dinosaurs have ears?
2. I'm _________ (do) my homework.
3. Dinosaurs and people _________ (be) different.
4. Here are some other _________ (thing) you can turn on and turn off.
5. We are _________ (same).
答案
1. don't 2. doing 3. are 4. things 5. the same